18972720

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2027}}^1$

素因数の和:2059

約数の個数: 120

約数和(自身を含む): 68651856

約数和(自身を除く): 49679136

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 36, 39, 40, 45, 48, 52, 60, 65, 72, 78, 80, 90, 104, 117, 120, 130, 144, 156, 180, 195, 208, 234, 240, 260, 312, 360, 390, 468, 520, 585, 624, 720, 780, 936, 1040, 1170, 1560, 1872, 2027, 2340, 3120, 4054, 4680, 6081, 8108, 9360, 10135, 12162, 16216, 18243, 20270, 24324, 26351, 30405, 32432, 36486, 40540, 48648, 52702, 60810, 72972, 79053, 81080, 91215, 97296, 105404, 121620, 131755, 145944, 158106, 162160, 182430, 210808, 237159, 243240, 263510, 291888, 316212, 364860, 395265, 421616, 474318, 486480, 527020, 632424, 729720, 790530, 948636, 1054040, 1185795, 1264848, 1459440, 1581060, 1897272, 2108080, 2371590, 3162120, 3794544, 4743180, 6324240, 9486360, 18972720]

約数ペア:

[(1, 18972720), (2, 9486360), (3, 6324240), (4, 4743180), (5, 3794544), (6, 3162120), (8, 2371590), (9, 2108080), (10, 1897272), (12, 1581060), (13, 1459440), (15, 1264848), (16, 1185795), (18, 1054040), (20, 948636), (24, 790530), (26, 729720), (30, 632424), (36, 527020), (39, 486480), (40, 474318), (45, 421616), (48, 395265), (52, 364860), (60, 316212), (65, 291888), (72, 263510), (78, 243240), (80, 237159), (90, 210808), (104, 182430), (117, 162160), (120, 158106), (130, 145944), (144, 131755), (156, 121620), (180, 105404), (195, 97296), (208, 91215), (234, 81080), (240, 79053), (260, 72972), (312, 60810), (360, 52702), (390, 48648), (468, 40540), (520, 36486), (585, 32432), (624, 30405), (720, 26351), (780, 24324), (936, 20270), (1040, 18243), (1170, 16216), (1560, 12162), (1872, 10135), (2027, 9360), (2340, 8108), (3120, 6081), (4054, 4680)]