20038356

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{911}}^1$

素因数の和:981

約数の個数: 72

約数和(自身を含む): 55770624

約数和(自身を除く): 35732268

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 47, 52, 78, 94, 117, 141, 156, 188, 234, 282, 423, 468, 564, 611, 846, 911, 1222, 1692, 1822, 1833, 2444, 2733, 3644, 3666, 5466, 5499, 7332, 8199, 10932, 10998, 11843, 16398, 21996, 23686, 32796, 35529, 42817, 47372, 71058, 85634, 106587, 128451, 142116, 171268, 213174, 256902, 385353, 426348, 513804, 556621, 770706, 1113242, 1541412, 1669863, 2226484, 3339726, 5009589, 6679452, 10019178, 20038356]

約数ペア:

[(1, 20038356), (2, 10019178), (3, 6679452), (4, 5009589), (6, 3339726), (9, 2226484), (12, 1669863), (13, 1541412), (18, 1113242), (26, 770706), (36, 556621), (39, 513804), (47, 426348), (52, 385353), (78, 256902), (94, 213174), (117, 171268), (141, 142116), (156, 128451), (188, 106587), (234, 85634), (282, 71058), (423, 47372), (468, 42817), (564, 35529), (611, 32796), (846, 23686), (911, 21996), (1222, 16398), (1692, 11843), (1822, 10998), (1833, 10932), (2444, 8199), (2733, 7332), (3644, 5499), (3666, 5466)]