20388360

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2393}}^1$

素因数の和:2478

約数の個数: 64

約数和(自身を含む): 62052480

約数和(自身を除く): 41664120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 71, 120, 142, 213, 284, 355, 426, 568, 710, 852, 1065, 1420, 1704, 2130, 2393, 2840, 4260, 4786, 7179, 8520, 9572, 11965, 14358, 19144, 23930, 28716, 35895, 47860, 57432, 71790, 95720, 143580, 169903, 287160, 339806, 509709, 679612, 849515, 1019418, 1359224, 1699030, 2038836, 2548545, 3398060, 4077672, 5097090, 6796120, 10194180, 20388360]

約数ペア:

[(1, 20388360), (2, 10194180), (3, 6796120), (4, 5097090), (5, 4077672), (6, 3398060), (8, 2548545), (10, 2038836), (12, 1699030), (15, 1359224), (20, 1019418), (24, 849515), (30, 679612), (40, 509709), (60, 339806), (71, 287160), (120, 169903), (142, 143580), (213, 95720), (284, 71790), (355, 57432), (426, 47860), (568, 35895), (710, 28716), (852, 23930), (1065, 19144), (1420, 14358), (1704, 11965), (2130, 9572), (2393, 8520), (2840, 7179), (4260, 4786)]