255307920

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{151969}}^1$

素因数の和:151992

約数の個数: 80

約数和(自身を含む): 904525440

約数和(自身を除く): 649217520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 151969, 303938, 455907, 607876, 759845, 911814, 1063783, 1215752, 1519690, 1823628, 2127566, 2279535, 2431504, 3039380, 3191349, 3647256, 4255132, 4559070, 5318915, 6078760, 6382698, 7294512, 8510264, 9118140, 10637830, 12157520, 12765396, 15956745, 17020528, 18236280, 21275660, 25530792, 31913490, 36472560, 42551320, 51061584, 63826980, 85102640, 127653960, 255307920]

約数ペア:

[(1, 255307920), (2, 127653960), (3, 85102640), (4, 63826980), (5, 51061584), (6, 42551320), (7, 36472560), (8, 31913490), (10, 25530792), (12, 21275660), (14, 18236280), (15, 17020528), (16, 15956745), (20, 12765396), (21, 12157520), (24, 10637830), (28, 9118140), (30, 8510264), (35, 7294512), (40, 6382698), (42, 6078760), (48, 5318915), (56, 4559070), (60, 4255132), (70, 3647256), (80, 3191349), (84, 3039380), (105, 2431504), (112, 2279535), (120, 2127566), (140, 1823628), (168, 1519690), (210, 1215752), (240, 1063783), (280, 911814), (336, 759845), (420, 607876), (560, 455907), (840, 303938), (1680, 151969)]