1491207985

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{241}}^1\times {\mathrm{307}}^1$

素因数の和:721

約数の個数: 32

約数和(自身を含む): 1878307200

約数和(自身を除く): 387099215

約数列:

[1, 5, 29, 139, 145, 241, 307, 695, 1205, 1535, 4031, 6989, 8903, 20155, 33499, 34945, 42673, 44515, 73987, 167495, 213365, 369935, 971471, 1237517, 2145623, 4857355, 6187585, 10284193, 10728115, 51420965, 298241597, 1491207985]

約数ペア:

[(1, 1491207985), (5, 298241597), (29, 51420965), (139, 10728115), (145, 10284193), (241, 6187585), (307, 4857355), (695, 2145623), (1205, 1237517), (1535, 971471), (4031, 369935), (6989, 213365), (8903, 167495), (20155, 73987), (33499, 44515), (34945, 42673)]