18996540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{199}}^1$

素因数の和:291

約数の個数: 96

約数和(自身を含む): 56179200

約数和(自身を除く): 37182660

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 37, 43, 60, 74, 86, 111, 129, 148, 172, 185, 199, 215, 222, 258, 370, 398, 430, 444, 516, 555, 597, 645, 740, 796, 860, 995, 1110, 1194, 1290, 1591, 1990, 2220, 2388, 2580, 2985, 3182, 3980, 4773, 5970, 6364, 7363, 7955, 8557, 9546, 11940, 14726, 15910, 17114, 19092, 22089, 23865, 25671, 29452, 31820, 34228, 36815, 42785, 44178, 47730, 51342, 73630, 85570, 88356, 95460, 102684, 110445, 128355, 147260, 171140, 220890, 256710, 316609, 441780, 513420, 633218, 949827, 1266436, 1583045, 1899654, 3166090, 3799308, 4749135, 6332180, 9498270, 18996540]

約数ペア:

[(1, 18996540), (2, 9498270), (3, 6332180), (4, 4749135), (5, 3799308), (6, 3166090), (10, 1899654), (12, 1583045), (15, 1266436), (20, 949827), (30, 633218), (37, 513420), (43, 441780), (60, 316609), (74, 256710), (86, 220890), (111, 171140), (129, 147260), (148, 128355), (172, 110445), (185, 102684), (199, 95460), (215, 88356), (222, 85570), (258, 73630), (370, 51342), (398, 47730), (430, 44178), (444, 42785), (516, 36815), (555, 34228), (597, 31820), (645, 29452), (740, 25671), (796, 23865), (860, 22089), (995, 19092), (1110, 17114), (1194, 15910), (1290, 14726), (1591, 11940), (1990, 9546), (2220, 8557), (2388, 7955), (2580, 7363), (2985, 6364), (3182, 5970), (3980, 4773)]