18659640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{1187}}^1$

素因数の和:1332

約数の個数: 64

約数和(自身を含む): 56453760

約数和(自身を除く): 37794120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 131, 262, 393, 524, 655, 786, 1048, 1187, 1310, 1572, 1965, 2374, 2620, 3144, 3561, 3930, 4748, 5240, 5935, 7122, 7860, 9496, 11870, 14244, 15720, 17805, 23740, 28488, 35610, 47480, 71220, 142440, 155497, 310994, 466491, 621988, 777485, 932982, 1243976, 1554970, 1865964, 2332455, 3109940, 3731928, 4664910, 6219880, 9329820, 18659640]

約数ペア:

[(1, 18659640), (2, 9329820), (3, 6219880), (4, 4664910), (5, 3731928), (6, 3109940), (8, 2332455), (10, 1865964), (12, 1554970), (15, 1243976), (20, 932982), (24, 777485), (30, 621988), (40, 466491), (60, 310994), (120, 155497), (131, 142440), (262, 71220), (393, 47480), (524, 35610), (655, 28488), (786, 23740), (1048, 17805), (1187, 15720), (1310, 14244), (1572, 11870), (1965, 9496), (2374, 7860), (2620, 7122), (3144, 5935), (3561, 5240), (3930, 4748)]