280720125

素因数分解:

$3^2\times 5^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{829}}^1$

素因数の和:900

約数の個数: 96

約数和(自身を含む): 592500480

約数和(自身を除く): 311780355

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 43, 45, 63, 75, 105, 125, 129, 175, 215, 225, 301, 315, 375, 387, 525, 645, 829, 875, 903, 1075, 1125, 1505, 1575, 1935, 2487, 2625, 2709, 3225, 4145, 4515, 5375, 5803, 7461, 7525, 7875, 9675, 12435, 13545, 16125, 17409, 20725, 22575, 29015, 35647, 37305, 37625, 48375, 52227, 62175, 67725, 87045, 103625, 106941, 112875, 145075, 178235, 186525, 249529, 261135, 310875, 320823, 338625, 435225, 534705, 725375, 748587, 891175, 932625, 1247645, 1305675, 1604115, 2176125, 2245761, 2673525, 3742935, 4455875, 6238225, 6528375, 8020575, 11228805, 13367625, 18714675, 31191125, 40102875, 56144025, 93573375, 280720125]

約数ペア:

[(1, 280720125), (3, 93573375), (5, 56144025), (7, 40102875), (9, 31191125), (15, 18714675), (21, 13367625), (25, 11228805), (35, 8020575), (43, 6528375), (45, 6238225), (63, 4455875), (75, 3742935), (105, 2673525), (125, 2245761), (129, 2176125), (175, 1604115), (215, 1305675), (225, 1247645), (301, 932625), (315, 891175), (375, 748587), (387, 725375), (525, 534705), (645, 435225), (829, 338625), (875, 320823), (903, 310875), (1075, 261135), (1125, 249529), (1505, 186525), (1575, 178235), (1935, 145075), (2487, 112875), (2625, 106941), (2709, 103625), (3225, 87045), (4145, 67725), (4515, 62175), (5375, 52227), (5803, 48375), (7461, 37625), (7525, 37305), (7875, 35647), (9675, 29015), (12435, 22575), (13545, 20725), (16125, 17409)]