2917420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1$

素因数の和:258

約数の個数: 48

約数和(自身を含む): 6804000

約数和(自身を除く): 3886580

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 89, 110, 149, 178, 220, 298, 356, 445, 596, 745, 890, 979, 1490, 1639, 1780, 1958, 2980, 3278, 3916, 4895, 6556, 8195, 9790, 13261, 16390, 19580, 26522, 32780, 53044, 66305, 132610, 145871, 265220, 291742, 583484, 729355, 1458710, 2917420]

約数ペア:

[(1, 2917420), (2, 1458710), (4, 729355), (5, 583484), (10, 291742), (11, 265220), (20, 145871), (22, 132610), (44, 66305), (55, 53044), (89, 32780), (110, 26522), (149, 19580), (178, 16390), (220, 13261), (298, 9790), (356, 8195), (445, 6556), (596, 4895), (745, 3916), (890, 3278), (979, 2980), (1490, 1958), (1639, 1780)]