251974960

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{1709}}^1$

素因数の和:1838

約数の個数: 80

約数和(自身を含む): 623397600

約数和(自身を除く): 371422640

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 97, 152, 190, 194, 304, 380, 388, 485, 760, 776, 970, 1520, 1552, 1709, 1843, 1940, 3418, 3686, 3880, 6836, 7372, 7760, 8545, 9215, 13672, 14744, 17090, 18430, 27344, 29488, 32471, 34180, 36860, 64942, 68360, 73720, 129884, 136720, 147440, 162355, 165773, 259768, 324710, 331546, 519536, 649420, 663092, 828865, 1298840, 1326184, 1657730, 2597680, 2652368, 3149687, 3315460, 6299374, 6630920, 12598748, 13261840, 15748435, 25197496, 31496870, 50394992, 62993740, 125987480, 251974960]

約数ペア:

[(1, 251974960), (2, 125987480), (4, 62993740), (5, 50394992), (8, 31496870), (10, 25197496), (16, 15748435), (19, 13261840), (20, 12598748), (38, 6630920), (40, 6299374), (76, 3315460), (80, 3149687), (95, 2652368), (97, 2597680), (152, 1657730), (190, 1326184), (194, 1298840), (304, 828865), (380, 663092), (388, 649420), (485, 519536), (760, 331546), (776, 324710), (970, 259768), (1520, 165773), (1552, 162355), (1709, 147440), (1843, 136720), (1940, 129884), (3418, 73720), (3686, 68360), (3880, 64942), (6836, 36860), (7372, 34180), (7760, 32471), (8545, 29488), (9215, 27344), (13672, 18430), (14744, 17090)]