64614940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{967}}^1$

素因数の和:1246

約数の個数: 48

約数和(自身を含む): 146849472

約数和(自身を除く): 82234532

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 257, 260, 514, 967, 1028, 1285, 1934, 2570, 3341, 3868, 4835, 5140, 6682, 9670, 12571, 13364, 16705, 19340, 25142, 33410, 50284, 62855, 66820, 125710, 248519, 251420, 497038, 994076, 1242595, 2485190, 3230747, 4970380, 6461494, 12922988, 16153735, 32307470, 64614940]

約数ペア:

[(1, 64614940), (2, 32307470), (4, 16153735), (5, 12922988), (10, 6461494), (13, 4970380), (20, 3230747), (26, 2485190), (52, 1242595), (65, 994076), (130, 497038), (257, 251420), (260, 248519), (514, 125710), (967, 66820), (1028, 62855), (1285, 50284), (1934, 33410), (2570, 25142), (3341, 19340), (3868, 16705), (4835, 13364), (5140, 12571), (6682, 9670)]