261272960

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1013}}^1$

素因数の和:1076

約数の個数: 128

約数和(自身を含む): 695036160

約数和(自身を除く): 433763200

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 128, 130, 155, 160, 208, 248, 260, 310, 320, 403, 416, 496, 520, 620, 640, 806, 832, 992, 1013, 1040, 1240, 1612, 1664, 1984, 2015, 2026, 2080, 2480, 3224, 3968, 4030, 4052, 4160, 4960, 5065, 6448, 8060, 8104, 8320, 9920, 10130, 12896, 13169, 16120, 16208, 19840, 20260, 25792, 26338, 31403, 32240, 32416, 40520, 51584, 52676, 62806, 64480, 64832, 65845, 81040, 105352, 125612, 128960, 129664, 131690, 157015, 162080, 210704, 251224, 257920, 263380, 314030, 324160, 408239, 421408, 502448, 526760, 628060, 648320, 816478, 842816, 1004896, 1053520, 1256120, 1632956, 1685632, 2009792, 2041195, 2107040, 2512240, 3265912, 4019584, 4082390, 4214080, 5024480, 6531824, 8164780, 8428160, 10048960, 13063648, 16329560, 20097920, 26127296, 32659120, 52254592, 65318240, 130636480, 261272960]

約数ペア:

[(1, 261272960), (2, 130636480), (4, 65318240), (5, 52254592), (8, 32659120), (10, 26127296), (13, 20097920), (16, 16329560), (20, 13063648), (26, 10048960), (31, 8428160), (32, 8164780), (40, 6531824), (52, 5024480), (62, 4214080), (64, 4082390), (65, 4019584), (80, 3265912), (104, 2512240), (124, 2107040), (128, 2041195), (130, 2009792), (155, 1685632), (160, 1632956), (208, 1256120), (248, 1053520), (260, 1004896), (310, 842816), (320, 816478), (403, 648320), (416, 628060), (496, 526760), (520, 502448), (620, 421408), (640, 408239), (806, 324160), (832, 314030), (992, 263380), (1013, 257920), (1040, 251224), (1240, 210704), (1612, 162080), (1664, 157015), (1984, 131690), (2015, 129664), (2026, 128960), (2080, 125612), (2480, 105352), (3224, 81040), (3968, 65845), (4030, 64832), (4052, 64480), (4160, 62806), (4960, 52676), (5065, 51584), (6448, 40520), (8060, 32416), (8104, 32240), (8320, 31403), (9920, 26338), (10130, 25792), (12896, 20260), (13169, 19840), (16120, 16208)]