19418360

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{349}}^1$

素因数の和:480

約数の個数: 64

約数和(自身を含む): 47628000

約数和(自身を除く): 28209640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 107, 130, 214, 260, 349, 428, 520, 535, 698, 856, 1070, 1391, 1396, 1745, 2140, 2782, 2792, 3490, 4280, 4537, 5564, 6955, 6980, 9074, 11128, 13910, 13960, 18148, 22685, 27820, 36296, 37343, 45370, 55640, 74686, 90740, 149372, 181480, 186715, 298744, 373430, 485459, 746860, 970918, 1493720, 1941836, 2427295, 3883672, 4854590, 9709180, 19418360]

約数ペア:

[(1, 19418360), (2, 9709180), (4, 4854590), (5, 3883672), (8, 2427295), (10, 1941836), (13, 1493720), (20, 970918), (26, 746860), (40, 485459), (52, 373430), (65, 298744), (104, 186715), (107, 181480), (130, 149372), (214, 90740), (260, 74686), (349, 55640), (428, 45370), (520, 37343), (535, 36296), (698, 27820), (856, 22685), (1070, 18148), (1391, 13960), (1396, 13910), (1745, 11128), (2140, 9074), (2782, 6980), (2792, 6955), (3490, 5564), (4280, 4537)]