81368250

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1$

素因数の和:185

約数の個数: 128

約数和(自身を含む): 218350080

約数和(自身を除く): 136981830

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 25, 30, 46, 50, 53, 69, 75, 89, 106, 115, 125, 138, 150, 159, 178, 230, 250, 265, 267, 318, 345, 375, 445, 530, 534, 575, 690, 750, 795, 890, 1150, 1219, 1325, 1335, 1590, 1725, 2047, 2225, 2438, 2650, 2670, 2875, 3450, 3657, 3975, 4094, 4450, 4717, 5750, 6095, 6141, 6625, 6675, 7314, 7950, 8625, 9434, 10235, 11125, 12190, 12282, 13250, 13350, 14151, 17250, 18285, 19875, 20470, 22250, 23585, 28302, 30475, 30705, 33375, 36570, 39750, 47170, 51175, 60950, 61410, 66750, 70755, 91425, 102350, 108491, 117925, 141510, 152375, 153525, 182850, 216982, 235850, 255875, 304750, 307050, 325473, 353775, 457125, 511750, 542455, 589625, 650946, 707550, 767625, 914250, 1084910, 1179250, 1535250, 1627365, 1768875, 2712275, 3254730, 3537750, 5424550, 8136825, 13561375, 16273650, 27122750, 40684125, 81368250]

約数ペア:

[(1, 81368250), (2, 40684125), (3, 27122750), (5, 16273650), (6, 13561375), (10, 8136825), (15, 5424550), (23, 3537750), (25, 3254730), (30, 2712275), (46, 1768875), (50, 1627365), (53, 1535250), (69, 1179250), (75, 1084910), (89, 914250), (106, 767625), (115, 707550), (125, 650946), (138, 589625), (150, 542455), (159, 511750), (178, 457125), (230, 353775), (250, 325473), (265, 307050), (267, 304750), (318, 255875), (345, 235850), (375, 216982), (445, 182850), (530, 153525), (534, 152375), (575, 141510), (690, 117925), (750, 108491), (795, 102350), (890, 91425), (1150, 70755), (1219, 66750), (1325, 61410), (1335, 60950), (1590, 51175), (1725, 47170), (2047, 39750), (2225, 36570), (2438, 33375), (2650, 30705), (2670, 30475), (2875, 28302), (3450, 23585), (3657, 22250), (3975, 20470), (4094, 19875), (4450, 18285), (4717, 17250), (5750, 14151), (6095, 13350), (6141, 13250), (6625, 12282), (6675, 12190), (7314, 11125), (7950, 10235), (8625, 9434)]