19668840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2687}}^1$

素因数の和:2762

約数の個数: 64

約数和(自身を含む): 59996160

約数和(自身を除く): 40327320

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, 2687, 3660, 5374, 7320, 8061, 10748, 13435, 16122, 21496, 26870, 32244, 40305, 53740, 64488, 80610, 107480, 161220, 163907, 322440, 327814, 491721, 655628, 819535, 983442, 1311256, 1639070, 1966884, 2458605, 3278140, 3933768, 4917210, 6556280, 9834420, 19668840]

約数ペア:

[(1, 19668840), (2, 9834420), (3, 6556280), (4, 4917210), (5, 3933768), (6, 3278140), (8, 2458605), (10, 1966884), (12, 1639070), (15, 1311256), (20, 983442), (24, 819535), (30, 655628), (40, 491721), (60, 327814), (61, 322440), (120, 163907), (122, 161220), (183, 107480), (244, 80610), (305, 64488), (366, 53740), (488, 40305), (610, 32244), (732, 26870), (915, 21496), (1220, 16122), (1464, 13435), (1830, 10748), (2440, 8061), (2687, 7320), (3660, 5374)]