420220125

素因数分解:

$3^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{487}}^1$

素因数の和:580

約数の個数: 96

約数和(自身を含む): 831317760

約数和(自身を除く): 411097635

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 59, 65, 75, 117, 125, 177, 195, 225, 295, 325, 375, 487, 531, 585, 767, 885, 975, 1125, 1461, 1475, 1625, 2301, 2435, 2655, 2925, 3835, 4383, 4425, 4875, 6331, 6903, 7305, 7375, 11505, 12175, 13275, 14625, 18993, 19175, 21915, 22125, 28733, 31655, 34515, 36525, 56979, 57525, 60875, 66375, 86199, 94965, 95875, 109575, 143665, 158275, 172575, 182625, 258597, 284895, 287625, 373529, 430995, 474825, 547875, 718325, 791375, 862875, 1120587, 1292985, 1424475, 1867645, 2154975, 2374125, 3361761, 3591625, 5602935, 6464925, 7122375, 9338225, 10774875, 16808805, 28014675, 32324625, 46691125, 84044025, 140073375, 420220125]

約数ペア:

[(1, 420220125), (3, 140073375), (5, 84044025), (9, 46691125), (13, 32324625), (15, 28014675), (25, 16808805), (39, 10774875), (45, 9338225), (59, 7122375), (65, 6464925), (75, 5602935), (117, 3591625), (125, 3361761), (177, 2374125), (195, 2154975), (225, 1867645), (295, 1424475), (325, 1292985), (375, 1120587), (487, 862875), (531, 791375), (585, 718325), (767, 547875), (885, 474825), (975, 430995), (1125, 373529), (1461, 287625), (1475, 284895), (1625, 258597), (2301, 182625), (2435, 172575), (2655, 158275), (2925, 143665), (3835, 109575), (4383, 95875), (4425, 94965), (4875, 86199), (6331, 66375), (6903, 60875), (7305, 57525), (7375, 56979), (11505, 36525), (12175, 34515), (13275, 31655), (14625, 28733), (18993, 22125), (19175, 21915)]