1561340280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{19507}}^1$

素因数の和:19573

約数の個数: 128

約数和(自身を含む): 5056473600

約数和(自身を除く): 3495133320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 29, 30, 40, 46, 58, 60, 69, 87, 92, 115, 116, 120, 138, 145, 174, 184, 230, 232, 276, 290, 345, 348, 435, 460, 552, 580, 667, 690, 696, 870, 920, 1160, 1334, 1380, 1740, 2001, 2668, 2760, 3335, 3480, 4002, 5336, 6670, 8004, 10005, 13340, 16008, 19507, 20010, 26680, 39014, 40020, 58521, 78028, 80040, 97535, 117042, 156056, 195070, 234084, 292605, 390140, 448661, 468168, 565703, 585210, 780280, 897322, 1131406, 1170420, 1345983, 1697109, 1794644, 2243305, 2262812, 2340840, 2691966, 2828515, 3394218, 3589288, 4486610, 4525624, 5383932, 5657030, 6729915, 6788436, 8485545, 8973220, 10767864, 11314060, 13011169, 13459830, 13576872, 16971090, 17946440, 22628120, 26022338, 26919660, 33942180, 39033507, 52044676, 53839320, 65055845, 67884360, 78067014, 104089352, 130111690, 156134028, 195167535, 260223380, 312268056, 390335070, 520446760, 780670140, 1561340280]

約数ペア:

[(1, 1561340280), (2, 780670140), (3, 520446760), (4, 390335070), (5, 312268056), (6, 260223380), (8, 195167535), (10, 156134028), (12, 130111690), (15, 104089352), (20, 78067014), (23, 67884360), (24, 65055845), (29, 53839320), (30, 52044676), (40, 39033507), (46, 33942180), (58, 26919660), (60, 26022338), (69, 22628120), (87, 17946440), (92, 16971090), (115, 13576872), (116, 13459830), (120, 13011169), (138, 11314060), (145, 10767864), (174, 8973220), (184, 8485545), (230, 6788436), (232, 6729915), (276, 5657030), (290, 5383932), (345, 4525624), (348, 4486610), (435, 3589288), (460, 3394218), (552, 2828515), (580, 2691966), (667, 2340840), (690, 2262812), (696, 2243305), (870, 1794644), (920, 1697109), (1160, 1345983), (1334, 1170420), (1380, 1131406), (1740, 897322), (2001, 780280), (2668, 585210), (2760, 565703), (3335, 468168), (3480, 448661), (4002, 390140), (5336, 292605), (6670, 234084), (8004, 195070), (10005, 156056), (13340, 117042), (16008, 97535), (19507, 80040), (20010, 78028), (26680, 58521), (39014, 40020)]