7149740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{257}}^1$

素因数の和:386

約数の個数: 48

約数和(自身を含む): 16384032

約数和(自身を除く): 9234292

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 107, 130, 214, 257, 260, 428, 514, 535, 1028, 1070, 1285, 1391, 2140, 2570, 2782, 3341, 5140, 5564, 6682, 6955, 13364, 13910, 16705, 27499, 27820, 33410, 54998, 66820, 109996, 137495, 274990, 357487, 549980, 714974, 1429948, 1787435, 3574870, 7149740]

約数ペア:

[(1, 7149740), (2, 3574870), (4, 1787435), (5, 1429948), (10, 714974), (13, 549980), (20, 357487), (26, 274990), (52, 137495), (65, 109996), (107, 66820), (130, 54998), (214, 33410), (257, 27820), (260, 27499), (428, 16705), (514, 13910), (535, 13364), (1028, 6955), (1070, 6682), (1285, 5564), (1391, 5140), (2140, 3341), (2570, 2782)]