405954760

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{113}}^1\times {\mathrm{163}}^1$

素因数の和:335

約数の個数: 128

約数和(自身を含む): 1009584000

約数和(自身を除く): 603629240

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 29, 38, 40, 58, 76, 95, 113, 116, 145, 152, 163, 190, 226, 232, 290, 326, 380, 452, 551, 565, 580, 652, 760, 815, 904, 1102, 1130, 1160, 1304, 1630, 2147, 2204, 2260, 2755, 3097, 3260, 3277, 4294, 4408, 4520, 4727, 5510, 6194, 6520, 6554, 8588, 9454, 10735, 11020, 12388, 13108, 15485, 16385, 17176, 18419, 18908, 21470, 22040, 23635, 24776, 26216, 30970, 32770, 36838, 37816, 42940, 47270, 61940, 62263, 65540, 73676, 85880, 89813, 92095, 94540, 123880, 124526, 131080, 147352, 179626, 184190, 189080, 249052, 311315, 349961, 359252, 368380, 449065, 498104, 534151, 622630, 699922, 718504, 736760, 898130, 1068302, 1245260, 1399844, 1749805, 1796260, 2136604, 2490520, 2670755, 2799688, 3499610, 3592520, 4273208, 5341510, 6999220, 10148869, 10683020, 13998440, 20297738, 21366040, 40595476, 50744345, 81190952, 101488690, 202977380, 405954760]

約数ペア:

[(1, 405954760), (2, 202977380), (4, 101488690), (5, 81190952), (8, 50744345), (10, 40595476), (19, 21366040), (20, 20297738), (29, 13998440), (38, 10683020), (40, 10148869), (58, 6999220), (76, 5341510), (95, 4273208), (113, 3592520), (116, 3499610), (145, 2799688), (152, 2670755), (163, 2490520), (190, 2136604), (226, 1796260), (232, 1749805), (290, 1399844), (326, 1245260), (380, 1068302), (452, 898130), (551, 736760), (565, 718504), (580, 699922), (652, 622630), (760, 534151), (815, 498104), (904, 449065), (1102, 368380), (1130, 359252), (1160, 349961), (1304, 311315), (1630, 249052), (2147, 189080), (2204, 184190), (2260, 179626), (2755, 147352), (3097, 131080), (3260, 124526), (3277, 123880), (4294, 94540), (4408, 92095), (4520, 89813), (4727, 85880), (5510, 73676), (6194, 65540), (6520, 62263), (6554, 61940), (8588, 47270), (9454, 42940), (10735, 37816), (11020, 36838), (12388, 32770), (13108, 30970), (15485, 26216), (16385, 24776), (17176, 23635), (18419, 22040), (18908, 21470)]