639872240

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^2\times {\mathrm{41}}^1$

素因数の和:152

約数の個数: 240

約数和(自身を含む): 1861755840

約数和(自身を除く): 1221883600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 31, 35, 40, 41, 56, 58, 62, 70, 80, 82, 112, 116, 124, 140, 145, 155, 164, 203, 205, 217, 232, 248, 280, 287, 290, 310, 328, 406, 410, 434, 464, 496, 560, 574, 580, 620, 656, 812, 820, 868, 899, 961, 1015, 1085, 1148, 1160, 1189, 1240, 1271, 1435, 1624, 1640, 1736, 1798, 1922, 2030, 2170, 2296, 2320, 2378, 2480, 2542, 2870, 3248, 3280, 3472, 3596, 3844, 4060, 4340, 4495, 4592, 4756, 4805, 5084, 5740, 5945, 6293, 6355, 6727, 7192, 7688, 8120, 8323, 8680, 8897, 8990, 9512, 9610, 10168, 11480, 11890, 12586, 12710, 13454, 14384, 15376, 16240, 16646, 17360, 17794, 17980, 19024, 19220, 20336, 22960, 23780, 25172, 25420, 26908, 27869, 31465, 33292, 33635, 35588, 35960, 36859, 38440, 39401, 41615, 44485, 47560, 50344, 50840, 53816, 55738, 62930, 66584, 67270, 71176, 71920, 73718, 76880, 78802, 83230, 88970, 95120, 100688, 101680, 107632, 111476, 125860, 133168, 134540, 139345, 142352, 147436, 157604, 166460, 177940, 184295, 195083, 197005, 222952, 251720, 258013, 269080, 275807, 278690, 294872, 315208, 332920, 355880, 368590, 390166, 394010, 445904, 503440, 516026, 538160, 551614, 557380, 589744, 630416, 665840, 711760, 737180, 780332, 788020, 975415, 1032052, 1103228, 1114760, 1142629, 1290065, 1379035, 1474360, 1560664, 1576040, 1950830, 2064104, 2206456, 2229520, 2285258, 2580130, 2758070, 2948720, 3121328, 3152080, 3901660, 4128208, 4412912, 4570516, 5160260, 5516140, 5713145, 7803320, 7998403, 9141032, 10320520, 11032280, 11426290, 15606640, 15996806, 18282064, 20641040, 22064560, 22852580, 31993612, 39992015, 45705160, 63987224, 79984030, 91410320, 127974448, 159968060, 319936120, 639872240]

約数ペア:

[(1, 639872240), (2, 319936120), (4, 159968060), (5, 127974448), (7, 91410320), (8, 79984030), (10, 63987224), (14, 45705160), (16, 39992015), (20, 31993612), (28, 22852580), (29, 22064560), (31, 20641040), (35, 18282064), (40, 15996806), (41, 15606640), (56, 11426290), (58, 11032280), (62, 10320520), (70, 9141032), (80, 7998403), (82, 7803320), (112, 5713145), (116, 5516140), (124, 5160260), (140, 4570516), (145, 4412912), (155, 4128208), (164, 3901660), (203, 3152080), (205, 3121328), (217, 2948720), (232, 2758070), (248, 2580130), (280, 2285258), (287, 2229520), (290, 2206456), (310, 2064104), (328, 1950830), (406, 1576040), (410, 1560664), (434, 1474360), (464, 1379035), (496, 1290065), (560, 1142629), (574, 1114760), (580, 1103228), (620, 1032052), (656, 975415), (812, 788020), (820, 780332), (868, 737180), (899, 711760), (961, 665840), (1015, 630416), (1085, 589744), (1148, 557380), (1160, 551614), (1189, 538160), (1240, 516026), (1271, 503440), (1435, 445904), (1624, 394010), (1640, 390166), (1736, 368590), (1798, 355880), (1922, 332920), (2030, 315208), (2170, 294872), (2296, 278690), (2320, 275807), (2378, 269080), (2480, 258013), (2542, 251720), (2870, 222952), (3248, 197005), (3280, 195083), (3472, 184295), (3596, 177940), (3844, 166460), (4060, 157604), (4340, 147436), (4495, 142352), (4592, 139345), (4756, 134540), (4805, 133168), (5084, 125860), (5740, 111476), (5945, 107632), (6293, 101680), (6355, 100688), (6727, 95120), (7192, 88970), (7688, 83230), (8120, 78802), (8323, 76880), (8680, 73718), (8897, 71920), (8990, 71176), (9512, 67270), (9610, 66584), (10168, 62930), (11480, 55738), (11890, 53816), (12586, 50840), (12710, 50344), (13454, 47560), (14384, 44485), (15376, 41615), (16240, 39401), (16646, 38440), (17360, 36859), (17794, 35960), (17980, 35588), (19024, 33635), (19220, 33292), (20336, 31465), (22960, 27869), (23780, 26908), (25172, 25420)]