18860040

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{5821}}^1$

素因数の和:5844

約数の個数: 80

約数和(自身を含む): 63401580

約数和(自身を除く): 44541540

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 270, 324, 360, 405, 540, 648, 810, 1080, 1620, 3240, 5821, 11642, 17463, 23284, 29105, 34926, 46568, 52389, 58210, 69852, 87315, 104778, 116420, 139704, 157167, 174630, 209556, 232840, 261945, 314334, 349260, 419112, 471501, 523890, 628668, 698520, 785835, 943002, 1047780, 1257336, 1571670, 1886004, 2095560, 2357505, 3143340, 3772008, 4715010, 6286680, 9430020, 18860040]

約数ペア:

[(1, 18860040), (2, 9430020), (3, 6286680), (4, 4715010), (5, 3772008), (6, 3143340), (8, 2357505), (9, 2095560), (10, 1886004), (12, 1571670), (15, 1257336), (18, 1047780), (20, 943002), (24, 785835), (27, 698520), (30, 628668), (36, 523890), (40, 471501), (45, 419112), (54, 349260), (60, 314334), (72, 261945), (81, 232840), (90, 209556), (108, 174630), (120, 157167), (135, 139704), (162, 116420), (180, 104778), (216, 87315), (270, 69852), (324, 58210), (360, 52389), (405, 46568), (540, 34926), (648, 29105), (810, 23284), (1080, 17463), (1620, 11642), (3240, 5821)]