55540840

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{953}}^1$

素因数の和:1042

約数の個数: 64

約数和(自身を含む): 131880960

約数和(自身を除く): 76340120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 47, 62, 94, 124, 155, 188, 235, 248, 310, 376, 470, 620, 940, 953, 1240, 1457, 1880, 1906, 2914, 3812, 4765, 5828, 7285, 7624, 9530, 11656, 14570, 19060, 29140, 29543, 38120, 44791, 58280, 59086, 89582, 118172, 147715, 179164, 223955, 236344, 295430, 358328, 447910, 590860, 895820, 1181720, 1388521, 1791640, 2777042, 5554084, 6942605, 11108168, 13885210, 27770420, 55540840]

約数ペア:

[(1, 55540840), (2, 27770420), (4, 13885210), (5, 11108168), (8, 6942605), (10, 5554084), (20, 2777042), (31, 1791640), (40, 1388521), (47, 1181720), (62, 895820), (94, 590860), (124, 447910), (155, 358328), (188, 295430), (235, 236344), (248, 223955), (310, 179164), (376, 147715), (470, 118172), (620, 89582), (940, 59086), (953, 58280), (1240, 44791), (1457, 38120), (1880, 29543), (1906, 29140), (2914, 19060), (3812, 14570), (4765, 11656), (5828, 9530), (7285, 7624)]