971539220

素因数分解:

$2^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{349}}^1\times {\mathrm{769}}^1$

素因数の和:1308

約数の個数: 48

約数和(自身を含む): 2060058000

約数和(自身を除く): 1088518780

約数列:

[1, 2, 4, 5, 10, 20, 181, 349, 362, 698, 724, 769, 905, 1396, 1538, 1745, 1810, 3076, 3490, 3620, 3845, 6980, 7690, 15380, 63169, 126338, 139189, 252676, 268381, 278378, 315845, 536762, 556756, 631690, 695945, 1073524, 1263380, 1341905, 1391890, 2683810, 2783780, 5367620, 48576961, 97153922, 194307844, 242884805, 485769610, 971539220]

約数ペア:

[(1, 971539220), (2, 485769610), (4, 242884805), (5, 194307844), (10, 97153922), (20, 48576961), (181, 5367620), (349, 2783780), (362, 2683810), (698, 1391890), (724, 1341905), (769, 1263380), (905, 1073524), (1396, 695945), (1538, 631690), (1745, 556756), (1810, 536762), (3076, 315845), (3490, 278378), (3620, 268381), (3845, 252676), (6980, 139189), (7690, 126338), (15380, 63169)]