305291240

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{349}}^1\times {\mathrm{1151}}^1$

素因数の和:1530

約数の個数: 64

約数和(自身を含む): 725760000

約数和(自身を除く): 420468760

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 349, 380, 698, 760, 1151, 1396, 1745, 2302, 2792, 3490, 4604, 5755, 6631, 6980, 9208, 11510, 13262, 13960, 21869, 23020, 26524, 33155, 43738, 46040, 53048, 66310, 87476, 109345, 132620, 174952, 218690, 265240, 401699, 437380, 803398, 874760, 1606796, 2008495, 3213592, 4016990, 7632281, 8033980, 15264562, 16067960, 30529124, 38161405, 61058248, 76322810, 152645620, 305291240]

約数ペア:

[(1, 305291240), (2, 152645620), (4, 76322810), (5, 61058248), (8, 38161405), (10, 30529124), (19, 16067960), (20, 15264562), (38, 8033980), (40, 7632281), (76, 4016990), (95, 3213592), (152, 2008495), (190, 1606796), (349, 874760), (380, 803398), (698, 437380), (760, 401699), (1151, 265240), (1396, 218690), (1745, 174952), (2302, 132620), (2792, 109345), (3490, 87476), (4604, 66310), (5755, 53048), (6631, 46040), (6980, 43738), (9208, 33155), (11510, 26524), (13262, 23020), (13960, 21869)]