138589840

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:161

約数の個数: 160

約数和(自身を含む): 359976960

約数和(自身を除く): 221387120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 31, 40, 41, 47, 58, 62, 80, 82, 94, 116, 124, 145, 155, 164, 188, 205, 232, 235, 248, 290, 310, 328, 376, 410, 464, 470, 496, 580, 620, 656, 752, 820, 899, 940, 1160, 1189, 1240, 1271, 1363, 1457, 1640, 1798, 1880, 1927, 2320, 2378, 2480, 2542, 2726, 2914, 3280, 3596, 3760, 3854, 4495, 4756, 5084, 5452, 5828, 5945, 6355, 6815, 7192, 7285, 7708, 8990, 9512, 9635, 10168, 10904, 11656, 11890, 12710, 13630, 14384, 14570, 15416, 17980, 19024, 19270, 20336, 21808, 23312, 23780, 25420, 27260, 29140, 30832, 35960, 36859, 38540, 42253, 47560, 50840, 54520, 55883, 58280, 59737, 71920, 73718, 77080, 84506, 95120, 101680, 109040, 111766, 116560, 119474, 147436, 154160, 169012, 184295, 211265, 223532, 238948, 279415, 294872, 298685, 338024, 368590, 422530, 447064, 477896, 558830, 589744, 597370, 676048, 737180, 845060, 894128, 955792, 1117660, 1194740, 1474360, 1690120, 1732373, 2235320, 2389480, 2948720, 3380240, 3464746, 4470640, 4778960, 6929492, 8661865, 13858984, 17323730, 27717968, 34647460, 69294920, 138589840]

約数ペア:

[(1, 138589840), (2, 69294920), (4, 34647460), (5, 27717968), (8, 17323730), (10, 13858984), (16, 8661865), (20, 6929492), (29, 4778960), (31, 4470640), (40, 3464746), (41, 3380240), (47, 2948720), (58, 2389480), (62, 2235320), (80, 1732373), (82, 1690120), (94, 1474360), (116, 1194740), (124, 1117660), (145, 955792), (155, 894128), (164, 845060), (188, 737180), (205, 676048), (232, 597370), (235, 589744), (248, 558830), (290, 477896), (310, 447064), (328, 422530), (376, 368590), (410, 338024), (464, 298685), (470, 294872), (496, 279415), (580, 238948), (620, 223532), (656, 211265), (752, 184295), (820, 169012), (899, 154160), (940, 147436), (1160, 119474), (1189, 116560), (1240, 111766), (1271, 109040), (1363, 101680), (1457, 95120), (1640, 84506), (1798, 77080), (1880, 73718), (1927, 71920), (2320, 59737), (2378, 58280), (2480, 55883), (2542, 54520), (2726, 50840), (2914, 47560), (3280, 42253), (3596, 38540), (3760, 36859), (3854, 35960), (4495, 30832), (4756, 29140), (5084, 27260), (5452, 25420), (5828, 23780), (5945, 23312), (6355, 21808), (6815, 20336), (7192, 19270), (7285, 19024), (7708, 17980), (8990, 15416), (9512, 14570), (9635, 14384), (10168, 13630), (10904, 12710), (11656, 11890)]