313247920

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{1091}}^1$

素因数の和:1238

約数の個数: 80

約数和(自身を含む): 756389088

約数和(自身を除く): 443141168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 97, 148, 185, 194, 296, 370, 388, 485, 592, 740, 776, 970, 1091, 1480, 1552, 1940, 2182, 2960, 3589, 3880, 4364, 5455, 7178, 7760, 8728, 10910, 14356, 17456, 17945, 21820, 28712, 35890, 40367, 43640, 57424, 71780, 80734, 87280, 105827, 143560, 161468, 201835, 211654, 287120, 322936, 403670, 423308, 529135, 645872, 807340, 846616, 1058270, 1614680, 1693232, 2116540, 3229360, 3915599, 4233080, 7831198, 8466160, 15662396, 19577995, 31324792, 39155990, 62649584, 78311980, 156623960, 313247920]

約数ペア:

[(1, 313247920), (2, 156623960), (4, 78311980), (5, 62649584), (8, 39155990), (10, 31324792), (16, 19577995), (20, 15662396), (37, 8466160), (40, 7831198), (74, 4233080), (80, 3915599), (97, 3229360), (148, 2116540), (185, 1693232), (194, 1614680), (296, 1058270), (370, 846616), (388, 807340), (485, 645872), (592, 529135), (740, 423308), (776, 403670), (970, 322936), (1091, 287120), (1480, 211654), (1552, 201835), (1940, 161468), (2182, 143560), (2960, 105827), (3589, 87280), (3880, 80734), (4364, 71780), (5455, 57424), (7178, 43640), (7760, 40367), (8728, 35890), (10910, 28712), (14356, 21820), (17456, 17945)]