720284840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{461}}^1$

素因数の和:603

約数の個数: 128

約数和(自身を含む): 1832181120

約数和(自身を除く): 1111896280

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 53, 55, 67, 88, 106, 110, 134, 212, 220, 265, 268, 335, 424, 440, 461, 530, 536, 583, 670, 737, 922, 1060, 1166, 1340, 1474, 1844, 2120, 2305, 2332, 2680, 2915, 2948, 3551, 3685, 3688, 4610, 4664, 5071, 5830, 5896, 7102, 7370, 9220, 10142, 11660, 14204, 14740, 17755, 18440, 20284, 23320, 24433, 25355, 28408, 29480, 30887, 35510, 39061, 40568, 48866, 50710, 61774, 71020, 78122, 97732, 101420, 122165, 123548, 142040, 154435, 156244, 195305, 195464, 202840, 244330, 247096, 268763, 308870, 312488, 339757, 390610, 488660, 537526, 617740, 679514, 781220, 977320, 1075052, 1235480, 1343815, 1359028, 1562440, 1637011, 1698785, 2150104, 2687630, 2718056, 3274022, 3397570, 5375260, 6548044, 6795140, 8185055, 10750520, 13096088, 13590280, 16370110, 18007121, 32740220, 36014242, 65480440, 72028484, 90035605, 144056968, 180071210, 360142420, 720284840]

約数ペア:

[(1, 720284840), (2, 360142420), (4, 180071210), (5, 144056968), (8, 90035605), (10, 72028484), (11, 65480440), (20, 36014242), (22, 32740220), (40, 18007121), (44, 16370110), (53, 13590280), (55, 13096088), (67, 10750520), (88, 8185055), (106, 6795140), (110, 6548044), (134, 5375260), (212, 3397570), (220, 3274022), (265, 2718056), (268, 2687630), (335, 2150104), (424, 1698785), (440, 1637011), (461, 1562440), (530, 1359028), (536, 1343815), (583, 1235480), (670, 1075052), (737, 977320), (922, 781220), (1060, 679514), (1166, 617740), (1340, 537526), (1474, 488660), (1844, 390610), (2120, 339757), (2305, 312488), (2332, 308870), (2680, 268763), (2915, 247096), (2948, 244330), (3551, 202840), (3685, 195464), (3688, 195305), (4610, 156244), (4664, 154435), (5071, 142040), (5830, 123548), (5896, 122165), (7102, 101420), (7370, 97732), (9220, 78122), (10142, 71020), (11660, 61774), (14204, 50710), (14740, 48866), (17755, 40568), (18440, 39061), (20284, 35510), (23320, 30887), (24433, 29480), (25355, 28408)]