289380455

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{647}}^1\times {\mathrm{983}}^1$

素因数の和:1655

約数の個数: 32

約数和(自身を含む): 428488704

約数和(自身を除く): 139108249

約数列:

[1, 5, 7, 13, 35, 65, 91, 455, 647, 983, 3235, 4529, 4915, 6881, 8411, 12779, 22645, 34405, 42055, 58877, 63895, 89453, 294385, 447265, 636001, 3180005, 4452007, 8268013, 22260035, 41340065, 57876091, 289380455]

約数ペア:

[(1, 289380455), (5, 57876091), (7, 41340065), (13, 22260035), (35, 8268013), (65, 4452007), (91, 3180005), (455, 636001), (647, 447265), (983, 294385), (3235, 89453), (4529, 63895), (4915, 58877), (6881, 42055), (8411, 34405), (12779, 22645)]