81272280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{9539}}^1$

素因数の和:9624

約数の個数: 64

約数和(自身を含む): 247276800

約数和(自身を除く): 166004520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 71, 120, 142, 213, 284, 355, 426, 568, 710, 852, 1065, 1420, 1704, 2130, 2840, 4260, 8520, 9539, 19078, 28617, 38156, 47695, 57234, 76312, 95390, 114468, 143085, 190780, 228936, 286170, 381560, 572340, 677269, 1144680, 1354538, 2031807, 2709076, 3386345, 4063614, 5418152, 6772690, 8127228, 10159035, 13545380, 16254456, 20318070, 27090760, 40636140, 81272280]

約数ペア:

[(1, 81272280), (2, 40636140), (3, 27090760), (4, 20318070), (5, 16254456), (6, 13545380), (8, 10159035), (10, 8127228), (12, 6772690), (15, 5418152), (20, 4063614), (24, 3386345), (30, 2709076), (40, 2031807), (60, 1354538), (71, 1144680), (120, 677269), (142, 572340), (213, 381560), (284, 286170), (355, 228936), (426, 190780), (568, 143085), (710, 114468), (852, 95390), (1065, 76312), (1420, 57234), (1704, 47695), (2130, 38156), (2840, 28617), (4260, 19078), (8520, 9539)]