20177264980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{269}}^1\times {\mathrm{220613}}^1$

素因数の和:220908

約数の個数: 48

約数和(自身を含む): 45031729680

約数和(自身を除く): 24854464700

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 269, 340, 538, 1076, 1345, 2690, 4573, 5380, 9146, 18292, 22865, 45730, 91460, 220613, 441226, 882452, 1103065, 2206130, 3750421, 4412260, 7500842, 15001684, 18752105, 37504210, 59344897, 75008420, 118689794, 237379588, 296724485, 593448970, 1008863249, 1186897940, 2017726498, 4035452996, 5044316245, 10088632490, 20177264980]

約数ペア:

[(1, 20177264980), (2, 10088632490), (4, 5044316245), (5, 4035452996), (10, 2017726498), (17, 1186897940), (20, 1008863249), (34, 593448970), (68, 296724485), (85, 237379588), (170, 118689794), (269, 75008420), (340, 59344897), (538, 37504210), (1076, 18752105), (1345, 15001684), (2690, 7500842), (4573, 4412260), (5380, 3750421), (9146, 2206130), (18292, 1103065), (22865, 882452), (45730, 441226), (91460, 220613)]