398012720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{227}}^1$

素因数の和:379

約数の個数: 160

約数和(自身を含む): 1107357696

約数和(自身を除く): 709344976

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 101, 112, 124, 140, 155, 202, 217, 227, 248, 280, 310, 404, 434, 454, 496, 505, 560, 620, 707, 808, 868, 908, 1010, 1085, 1135, 1240, 1414, 1589, 1616, 1736, 1816, 2020, 2170, 2270, 2480, 2828, 3131, 3178, 3472, 3535, 3632, 4040, 4340, 4540, 5656, 6262, 6356, 7037, 7070, 7945, 8080, 8680, 9080, 11312, 12524, 12712, 14074, 14140, 15655, 15890, 17360, 18160, 21917, 22927, 25048, 25424, 28148, 28280, 31310, 31780, 35185, 43834, 45854, 49259, 50096, 56296, 56560, 62620, 63560, 70370, 87668, 91708, 98518, 109585, 112592, 114635, 125240, 127120, 140740, 160489, 175336, 183416, 197036, 219170, 229270, 246295, 250480, 281480, 320978, 350672, 366832, 394072, 438340, 458540, 492590, 562960, 641956, 710737, 788144, 802445, 876680, 917080, 985180, 1283912, 1421474, 1604890, 1753360, 1834160, 1970360, 2567824, 2842948, 3209780, 3553685, 3940720, 4975159, 5685896, 6419560, 7107370, 9950318, 11371792, 12839120, 14214740, 19900636, 24875795, 28429480, 39801272, 49751590, 56858960, 79602544, 99503180, 199006360, 398012720]

約数ペア:

[(1, 398012720), (2, 199006360), (4, 99503180), (5, 79602544), (7, 56858960), (8, 49751590), (10, 39801272), (14, 28429480), (16, 24875795), (20, 19900636), (28, 14214740), (31, 12839120), (35, 11371792), (40, 9950318), (56, 7107370), (62, 6419560), (70, 5685896), (80, 4975159), (101, 3940720), (112, 3553685), (124, 3209780), (140, 2842948), (155, 2567824), (202, 1970360), (217, 1834160), (227, 1753360), (248, 1604890), (280, 1421474), (310, 1283912), (404, 985180), (434, 917080), (454, 876680), (496, 802445), (505, 788144), (560, 710737), (620, 641956), (707, 562960), (808, 492590), (868, 458540), (908, 438340), (1010, 394072), (1085, 366832), (1135, 350672), (1240, 320978), (1414, 281480), (1589, 250480), (1616, 246295), (1736, 229270), (1816, 219170), (2020, 197036), (2170, 183416), (2270, 175336), (2480, 160489), (2828, 140740), (3131, 127120), (3178, 125240), (3472, 114635), (3535, 112592), (3632, 109585), (4040, 98518), (4340, 91708), (4540, 87668), (5656, 70370), (6262, 63560), (6356, 62620), (7037, 56560), (7070, 56296), (7945, 50096), (8080, 49259), (8680, 45854), (9080, 43834), (11312, 35185), (12524, 31780), (12712, 31310), (14074, 28280), (14140, 28148), (15655, 25424), (15890, 25048), (17360, 22927), (18160, 21917)]