64987875

素因数分解:

$3^2\times 5^3\times {\mathrm{61}}^1\times {\mathrm{947}}^1$

素因数の和:1029

約数の個数: 48

約数和(自身を含む): 119197728

約数和(自身を除く): 54209853

約数列:

[1, 3, 5, 9, 15, 25, 45, 61, 75, 125, 183, 225, 305, 375, 549, 915, 947, 1125, 1525, 2745, 2841, 4575, 4735, 7625, 8523, 13725, 14205, 22875, 23675, 42615, 57767, 68625, 71025, 118375, 173301, 213075, 288835, 355125, 519903, 866505, 1065375, 1444175, 2599515, 4332525, 7220875, 12997575, 21662625, 64987875]

約数ペア:

[(1, 64987875), (3, 21662625), (5, 12997575), (9, 7220875), (15, 4332525), (25, 2599515), (45, 1444175), (61, 1065375), (75, 866505), (125, 519903), (183, 355125), (225, 288835), (305, 213075), (375, 173301), (549, 118375), (915, 71025), (947, 68625), (1125, 57767), (1525, 42615), (2745, 23675), (2841, 22875), (4575, 14205), (4735, 13725), (7625, 8523)]