161535420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{28949}}^1$

素因数の和:28995

約数の個数: 72

約数和(自身を含む): 505814400

約数和(自身を除く): 344278980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 155, 180, 186, 279, 310, 372, 465, 558, 620, 930, 1116, 1395, 1860, 2790, 5580, 28949, 57898, 86847, 115796, 144745, 173694, 260541, 289490, 347388, 434235, 521082, 578980, 868470, 897419, 1042164, 1302705, 1736940, 1794838, 2605410, 2692257, 3589676, 4487095, 5210820, 5384514, 8076771, 8974190, 10769028, 13461285, 16153542, 17948380, 26922570, 32307084, 40383855, 53845140, 80767710, 161535420]

約数ペア:

[(1, 161535420), (2, 80767710), (3, 53845140), (4, 40383855), (5, 32307084), (6, 26922570), (9, 17948380), (10, 16153542), (12, 13461285), (15, 10769028), (18, 8974190), (20, 8076771), (30, 5384514), (31, 5210820), (36, 4487095), (45, 3589676), (60, 2692257), (62, 2605410), (90, 1794838), (93, 1736940), (124, 1302705), (155, 1042164), (180, 897419), (186, 868470), (279, 578980), (310, 521082), (372, 434235), (465, 347388), (558, 289490), (620, 260541), (930, 173694), (1116, 144745), (1395, 115796), (1860, 86847), (2790, 57898), (5580, 28949)]