2012121401960

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{857}}^1\times {\mathrm{659513}}^1$

素因数の和:660470

約数の個数: 64

約数和(自身を含む): 4583490397200

約数和(自身を除く): 2571368995240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 857, 890, 1714, 1780, 3428, 3560, 4285, 6856, 8570, 17140, 34280, 76273, 152546, 305092, 381365, 610184, 659513, 762730, 1319026, 1525460, 2638052, 3050920, 3297565, 5276104, 6595130, 13190260, 26380520, 58696657, 117393314, 234786628, 293483285, 469573256, 565202641, 586966570, 1130405282, 1173933140, 2260810564, 2347866280, 2826013205, 4521621128, 5652026410, 11304052820, 22608105640, 50303035049, 100606070098, 201212140196, 251515175245, 402424280392, 503030350490, 1006060700980, 2012121401960]

約数ペア:

[(1, 2012121401960), (2, 1006060700980), (4, 503030350490), (5, 402424280392), (8, 251515175245), (10, 201212140196), (20, 100606070098), (40, 50303035049), (89, 22608105640), (178, 11304052820), (356, 5652026410), (445, 4521621128), (712, 2826013205), (857, 2347866280), (890, 2260810564), (1714, 1173933140), (1780, 1130405282), (3428, 586966570), (3560, 565202641), (4285, 469573256), (6856, 293483285), (8570, 234786628), (17140, 117393314), (34280, 58696657), (76273, 26380520), (152546, 13190260), (305092, 6595130), (381365, 5276104), (610184, 3297565), (659513, 3050920), (762730, 2638052), (1319026, 1525460)]