18915270

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^2$

素因数の和:138

約数の個数: 96

約数和(自身を含む): 52337664

約数和(自身を除く): 33422394

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 31, 33, 43, 55, 62, 66, 86, 93, 110, 129, 155, 165, 186, 215, 258, 310, 330, 341, 430, 465, 473, 645, 682, 930, 946, 1023, 1290, 1333, 1419, 1705, 1849, 2046, 2365, 2666, 2838, 3410, 3698, 3999, 4730, 5115, 5547, 6665, 7095, 7998, 9245, 10230, 11094, 13330, 14190, 14663, 18490, 19995, 20339, 27735, 29326, 39990, 40678, 43989, 55470, 57319, 61017, 73315, 87978, 101695, 114638, 122034, 146630, 171957, 203390, 219945, 286595, 305085, 343914, 439890, 573190, 610170, 630509, 859785, 1261018, 1719570, 1891527, 3152545, 3783054, 6305090, 9457635, 18915270]

約数ペア:

[(1, 18915270), (2, 9457635), (3, 6305090), (5, 3783054), (6, 3152545), (10, 1891527), (11, 1719570), (15, 1261018), (22, 859785), (30, 630509), (31, 610170), (33, 573190), (43, 439890), (55, 343914), (62, 305085), (66, 286595), (86, 219945), (93, 203390), (110, 171957), (129, 146630), (155, 122034), (165, 114638), (186, 101695), (215, 87978), (258, 73315), (310, 61017), (330, 57319), (341, 55470), (430, 43989), (465, 40678), (473, 39990), (645, 29326), (682, 27735), (930, 20339), (946, 19995), (1023, 18490), (1290, 14663), (1333, 14190), (1419, 13330), (1705, 11094), (1849, 10230), (2046, 9245), (2365, 7998), (2666, 7095), (2838, 6665), (3410, 5547), (3698, 5115), (3999, 4730)]