197498420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{2551}}^1$

素因数の和:2653

約数の個数: 72

約数和(自身を含む): 488759040

約数和(自身を除く): 291260620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 79, 98, 140, 158, 196, 245, 316, 395, 490, 553, 790, 980, 1106, 1580, 2212, 2551, 2765, 3871, 5102, 5530, 7742, 10204, 11060, 12755, 15484, 17857, 19355, 25510, 35714, 38710, 51020, 71428, 77420, 89285, 124999, 178570, 201529, 249998, 357140, 403058, 499996, 624995, 806116, 1007645, 1249990, 1410703, 2015290, 2499980, 2821406, 4030580, 5642812, 7053515, 9874921, 14107030, 19749842, 28214060, 39499684, 49374605, 98749210, 197498420]

約数ペア:

[(1, 197498420), (2, 98749210), (4, 49374605), (5, 39499684), (7, 28214060), (10, 19749842), (14, 14107030), (20, 9874921), (28, 7053515), (35, 5642812), (49, 4030580), (70, 2821406), (79, 2499980), (98, 2015290), (140, 1410703), (158, 1249990), (196, 1007645), (245, 806116), (316, 624995), (395, 499996), (490, 403058), (553, 357140), (790, 249998), (980, 201529), (1106, 178570), (1580, 124999), (2212, 89285), (2551, 77420), (2765, 71428), (3871, 51020), (5102, 38710), (5530, 35714), (7742, 25510), (10204, 19355), (11060, 17857), (12755, 15484)]