21340260

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{4391}}^1$

素因数の和:4415

約数の個数: 72

約数和(自身を含む): 67144896

約数和(自身を除く): 45804636

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 243, 270, 324, 405, 486, 540, 810, 972, 1215, 1620, 2430, 4391, 4860, 8782, 13173, 17564, 21955, 26346, 39519, 43910, 52692, 65865, 79038, 87820, 118557, 131730, 158076, 197595, 237114, 263460, 355671, 395190, 474228, 592785, 711342, 790380, 1067013, 1185570, 1422684, 1778355, 2134026, 2371140, 3556710, 4268052, 5335065, 7113420, 10670130, 21340260]

約数ペア:

[(1, 21340260), (2, 10670130), (3, 7113420), (4, 5335065), (5, 4268052), (6, 3556710), (9, 2371140), (10, 2134026), (12, 1778355), (15, 1422684), (18, 1185570), (20, 1067013), (27, 790380), (30, 711342), (36, 592785), (45, 474228), (54, 395190), (60, 355671), (81, 263460), (90, 237114), (108, 197595), (135, 158076), (162, 131730), (180, 118557), (243, 87820), (270, 79038), (324, 65865), (405, 52692), (486, 43910), (540, 39519), (810, 26346), (972, 21955), (1215, 17564), (1620, 13173), (2430, 8782), (4391, 4860)]