20073940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{151}}^1$

素因数の和:217

約数の個数: 72

約数和(自身を含む): 47037312

約数和(自身を除く): 26963372

約数列:

[1, 2, 4, 5, 10, 17, 20, 23, 34, 46, 68, 85, 92, 115, 151, 170, 230, 289, 302, 340, 391, 460, 578, 604, 755, 782, 1156, 1445, 1510, 1564, 1955, 2567, 2890, 3020, 3473, 3910, 5134, 5780, 6647, 6946, 7820, 10268, 12835, 13294, 13892, 17365, 25670, 26588, 33235, 34730, 43639, 51340, 59041, 66470, 69460, 87278, 118082, 132940, 174556, 218195, 236164, 295205, 436390, 590410, 872780, 1003697, 1180820, 2007394, 4014788, 5018485, 10036970, 20073940]

約数ペア:

[(1, 20073940), (2, 10036970), (4, 5018485), (5, 4014788), (10, 2007394), (17, 1180820), (20, 1003697), (23, 872780), (34, 590410), (46, 436390), (68, 295205), (85, 236164), (92, 218195), (115, 174556), (151, 132940), (170, 118082), (230, 87278), (289, 69460), (302, 66470), (340, 59041), (391, 51340), (460, 43639), (578, 34730), (604, 33235), (755, 26588), (782, 25670), (1156, 17365), (1445, 13892), (1510, 13294), (1564, 12835), (1955, 10268), (2567, 7820), (2890, 6946), (3020, 6647), (3473, 5780), (3910, 5134)]