20466180

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{439}}^1$

素因数の和:498

約数の個数: 144

約数和(自身を含む): 73032960

約数和(自身を除く): 52566780

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 37, 42, 45, 60, 63, 70, 74, 84, 90, 105, 111, 126, 140, 148, 180, 185, 210, 222, 252, 259, 315, 333, 370, 420, 439, 444, 518, 555, 630, 666, 740, 777, 878, 1036, 1110, 1260, 1295, 1317, 1332, 1554, 1665, 1756, 2195, 2220, 2331, 2590, 2634, 3073, 3108, 3330, 3885, 3951, 4390, 4662, 5180, 5268, 6146, 6585, 6660, 7770, 7902, 8780, 9219, 9324, 11655, 12292, 13170, 15365, 15540, 15804, 16243, 18438, 19755, 23310, 26340, 27657, 30730, 32486, 36876, 39510, 46095, 46620, 48729, 55314, 61460, 64972, 79020, 81215, 92190, 97458, 110628, 113701, 138285, 146187, 162430, 184380, 194916, 227402, 243645, 276570, 292374, 324860, 341103, 454804, 487290, 553140, 568505, 584748, 682206, 730935, 974580, 1023309, 1137010, 1364412, 1461870, 1705515, 2046618, 2274020, 2923740, 3411030, 4093236, 5116545, 6822060, 10233090, 20466180]

約数ペア:

[(1, 20466180), (2, 10233090), (3, 6822060), (4, 5116545), (5, 4093236), (6, 3411030), (7, 2923740), (9, 2274020), (10, 2046618), (12, 1705515), (14, 1461870), (15, 1364412), (18, 1137010), (20, 1023309), (21, 974580), (28, 730935), (30, 682206), (35, 584748), (36, 568505), (37, 553140), (42, 487290), (45, 454804), (60, 341103), (63, 324860), (70, 292374), (74, 276570), (84, 243645), (90, 227402), (105, 194916), (111, 184380), (126, 162430), (140, 146187), (148, 138285), (180, 113701), (185, 110628), (210, 97458), (222, 92190), (252, 81215), (259, 79020), (315, 64972), (333, 61460), (370, 55314), (420, 48729), (439, 46620), (444, 46095), (518, 39510), (555, 36876), (630, 32486), (666, 30730), (740, 27657), (777, 26340), (878, 23310), (1036, 19755), (1110, 18438), (1260, 16243), (1295, 15804), (1317, 15540), (1332, 15365), (1554, 13170), (1665, 12292), (1756, 11655), (2195, 9324), (2220, 9219), (2331, 8780), (2590, 7902), (2634, 7770), (3073, 6660), (3108, 6585), (3330, 6146), (3885, 5268), (3951, 5180), (4390, 4662)]