890653640

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{733}}^1\times {\mathrm{821}}^1$

素因数の和:1602

約数の個数: 64

約数和(自身を含む): 2063450160

約数和(自身を除く): 1172796520

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 733, 740, 821, 1466, 1480, 1642, 2932, 3284, 3665, 4105, 5864, 6568, 7330, 8210, 14660, 16420, 27121, 29320, 30377, 32840, 54242, 60754, 108484, 121508, 135605, 151885, 216968, 243016, 271210, 303770, 542420, 601793, 607540, 1084840, 1203586, 1215080, 2407172, 3008965, 4814344, 6017930, 12035860, 22266341, 24071720, 44532682, 89065364, 111331705, 178130728, 222663410, 445326820, 890653640]

約数ペア:

[(1, 890653640), (2, 445326820), (4, 222663410), (5, 178130728), (8, 111331705), (10, 89065364), (20, 44532682), (37, 24071720), (40, 22266341), (74, 12035860), (148, 6017930), (185, 4814344), (296, 3008965), (370, 2407172), (733, 1215080), (740, 1203586), (821, 1084840), (1466, 607540), (1480, 601793), (1642, 542420), (2932, 303770), (3284, 271210), (3665, 243016), (4105, 216968), (5864, 151885), (6568, 135605), (7330, 121508), (8210, 108484), (14660, 60754), (16420, 54242), (27121, 32840), (29320, 30377)]