1815259860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{55717}}^1$

素因数の和:55913

約数の個数: 72

約数和(自身を含む): 5536809096

約数和(自身を除く): 3721549236

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 181, 362, 543, 724, 905, 1086, 1629, 1810, 2172, 2715, 3258, 3620, 5430, 6516, 8145, 10860, 16290, 32580, 55717, 111434, 167151, 222868, 278585, 334302, 501453, 557170, 668604, 835755, 1002906, 1114340, 1671510, 2005812, 2507265, 3343020, 5014530, 10029060, 10084777, 20169554, 30254331, 40339108, 50423885, 60508662, 90762993, 100847770, 121017324, 151271655, 181525986, 201695540, 302543310, 363051972, 453814965, 605086620, 907629930, 1815259860]

約数ペア:

[(1, 1815259860), (2, 907629930), (3, 605086620), (4, 453814965), (5, 363051972), (6, 302543310), (9, 201695540), (10, 181525986), (12, 151271655), (15, 121017324), (18, 100847770), (20, 90762993), (30, 60508662), (36, 50423885), (45, 40339108), (60, 30254331), (90, 20169554), (180, 10084777), (181, 10029060), (362, 5014530), (543, 3343020), (724, 2507265), (905, 2005812), (1086, 1671510), (1629, 1114340), (1810, 1002906), (2172, 835755), (2715, 668604), (3258, 557170), (3620, 501453), (5430, 334302), (6516, 278585), (8145, 222868), (10860, 167151), (16290, 111434), (32580, 55717)]