18131640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2477}}^1$

素因数の和:2552

約数の個数: 64

約数和(自身を含む): 55308960

約数和(自身を除く): 37177320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 61, 120, 122, 183, 244, 305, 366, 488, 610, 732, 915, 1220, 1464, 1830, 2440, 2477, 3660, 4954, 7320, 7431, 9908, 12385, 14862, 19816, 24770, 29724, 37155, 49540, 59448, 74310, 99080, 148620, 151097, 297240, 302194, 453291, 604388, 755485, 906582, 1208776, 1510970, 1813164, 2266455, 3021940, 3626328, 4532910, 6043880, 9065820, 18131640]

約数ペア:

[(1, 18131640), (2, 9065820), (3, 6043880), (4, 4532910), (5, 3626328), (6, 3021940), (8, 2266455), (10, 1813164), (12, 1510970), (15, 1208776), (20, 906582), (24, 755485), (30, 604388), (40, 453291), (60, 302194), (61, 297240), (120, 151097), (122, 148620), (183, 99080), (244, 74310), (305, 59448), (366, 49540), (488, 37155), (610, 29724), (732, 24770), (915, 19816), (1220, 14862), (1464, 12385), (1830, 9908), (2440, 7431), (2477, 7320), (3660, 4954)]