28589625

素因数分解:

$3^3\times 5^3\times {\mathrm{43}}^1\times {\mathrm{197}}^1$

素因数の和:264

約数の個数: 64

約数和(自身を含む): 54362880

約数和(自身を除く): 25773255

約数列:

[1, 3, 5, 9, 15, 25, 27, 43, 45, 75, 125, 129, 135, 197, 215, 225, 375, 387, 591, 645, 675, 985, 1075, 1125, 1161, 1773, 1935, 2955, 3225, 3375, 4925, 5319, 5375, 5805, 8471, 8865, 9675, 14775, 16125, 24625, 25413, 26595, 29025, 42355, 44325, 48375, 73875, 76239, 127065, 132975, 145125, 211775, 221625, 228717, 381195, 635325, 664875, 1058875, 1143585, 1905975, 3176625, 5717925, 9529875, 28589625]

約数ペア:

[(1, 28589625), (3, 9529875), (5, 5717925), (9, 3176625), (15, 1905975), (25, 1143585), (27, 1058875), (43, 664875), (45, 635325), (75, 381195), (125, 228717), (129, 221625), (135, 211775), (197, 145125), (215, 132975), (225, 127065), (375, 76239), (387, 73875), (591, 48375), (645, 44325), (675, 42355), (985, 29025), (1075, 26595), (1125, 25413), (1161, 24625), (1773, 16125), (1935, 14775), (2955, 9675), (3225, 8865), (3375, 8471), (4925, 5805), (5319, 5375)]