657180880

素因数分解:

$2^4\times 5^1\times {\mathrm{113}}^1\times {\mathrm{139}}^1\times {\mathrm{523}}^1$

素因数の和:788

約数の個数: 80

約数和(自身を含む): 1555525440

約数和(自身を除く): 898344560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 113, 139, 226, 278, 452, 523, 556, 565, 695, 904, 1046, 1112, 1130, 1390, 1808, 2092, 2224, 2260, 2615, 2780, 4184, 4520, 5230, 5560, 8368, 9040, 10460, 11120, 15707, 20920, 31414, 41840, 59099, 62828, 72697, 78535, 118198, 125656, 145394, 157070, 236396, 251312, 290788, 295495, 314140, 363485, 472792, 581576, 590990, 628280, 726970, 945584, 1163152, 1181980, 1256560, 1453940, 2363960, 2907880, 4727920, 5815760, 8214761, 16429522, 32859044, 41073805, 65718088, 82147610, 131436176, 164295220, 328590440, 657180880]

約数ペア:

[(1, 657180880), (2, 328590440), (4, 164295220), (5, 131436176), (8, 82147610), (10, 65718088), (16, 41073805), (20, 32859044), (40, 16429522), (80, 8214761), (113, 5815760), (139, 4727920), (226, 2907880), (278, 2363960), (452, 1453940), (523, 1256560), (556, 1181980), (565, 1163152), (695, 945584), (904, 726970), (1046, 628280), (1112, 590990), (1130, 581576), (1390, 472792), (1808, 363485), (2092, 314140), (2224, 295495), (2260, 290788), (2615, 251312), (2780, 236396), (4184, 157070), (4520, 145394), (5230, 125656), (5560, 118198), (8368, 78535), (9040, 72697), (10460, 62828), (11120, 59099), (15707, 41840), (20920, 31414)]