1728220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1$

素因数の和:79

約数の個数: 72

約数和(自身を含む): 4332384

約数和(自身を除く): 2604164

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 23, 26, 34, 46, 52, 65, 68, 85, 92, 115, 130, 170, 221, 230, 260, 289, 299, 340, 391, 442, 460, 578, 598, 782, 884, 1105, 1156, 1196, 1445, 1495, 1564, 1955, 2210, 2890, 2990, 3757, 3910, 4420, 5083, 5780, 5980, 6647, 7514, 7820, 10166, 13294, 15028, 18785, 20332, 25415, 26588, 33235, 37570, 50830, 66470, 75140, 86411, 101660, 132940, 172822, 345644, 432055, 864110, 1728220]

約数ペア:

[(1, 1728220), (2, 864110), (4, 432055), (5, 345644), (10, 172822), (13, 132940), (17, 101660), (20, 86411), (23, 75140), (26, 66470), (34, 50830), (46, 37570), (52, 33235), (65, 26588), (68, 25415), (85, 20332), (92, 18785), (115, 15028), (130, 13294), (170, 10166), (221, 7820), (230, 7514), (260, 6647), (289, 5980), (299, 5780), (340, 5083), (391, 4420), (442, 3910), (460, 3757), (578, 2990), (598, 2890), (782, 2210), (884, 1955), (1105, 1564), (1156, 1495), (1196, 1445)]