287455220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{29881}}^1$

素因数の和:29940

約数の個数: 48

約数和(自身を含む): 667683408

約数和(自身を除く): 380228188

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 37, 52, 65, 74, 130, 148, 185, 260, 370, 481, 740, 962, 1924, 2405, 4810, 9620, 29881, 59762, 119524, 149405, 298810, 388453, 597620, 776906, 1105597, 1553812, 1942265, 2211194, 3884530, 4422388, 5527985, 7769060, 11055970, 14372761, 22111940, 28745522, 57491044, 71863805, 143727610, 287455220]

約数ペア:

[(1, 287455220), (2, 143727610), (4, 71863805), (5, 57491044), (10, 28745522), (13, 22111940), (20, 14372761), (26, 11055970), (37, 7769060), (52, 5527985), (65, 4422388), (74, 3884530), (130, 2211194), (148, 1942265), (185, 1553812), (260, 1105597), (370, 776906), (481, 597620), (740, 388453), (962, 298810), (1924, 149405), (2405, 119524), (4810, 59762), (9620, 29881)]