203421920

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^2\times {\mathrm{7523}}^1$

素因数の和:7564

約数の個数: 72

約数和(自身を含む): 520465176

約数和(自身を除く): 317043256

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 169, 208, 260, 338, 416, 520, 676, 845, 1040, 1352, 1690, 2080, 2704, 3380, 5408, 6760, 7523, 13520, 15046, 27040, 30092, 37615, 60184, 75230, 97799, 120368, 150460, 195598, 240736, 300920, 391196, 488995, 601840, 782392, 977990, 1203680, 1271387, 1564784, 1955980, 2542774, 3129568, 3911960, 5085548, 6356935, 7823920, 10171096, 12713870, 15647840, 20342192, 25427740, 40684384, 50855480, 101710960, 203421920]

約数ペア:

[(1, 203421920), (2, 101710960), (4, 50855480), (5, 40684384), (8, 25427740), (10, 20342192), (13, 15647840), (16, 12713870), (20, 10171096), (26, 7823920), (32, 6356935), (40, 5085548), (52, 3911960), (65, 3129568), (80, 2542774), (104, 1955980), (130, 1564784), (160, 1271387), (169, 1203680), (208, 977990), (260, 782392), (338, 601840), (416, 488995), (520, 391196), (676, 300920), (845, 240736), (1040, 195598), (1352, 150460), (1690, 120368), (2080, 97799), (2704, 75230), (3380, 60184), (5408, 37615), (6760, 30092), (7523, 27040), (13520, 15046)]