15894840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{443}}^1$

素因数の和:493

約数の個数: 128

約数和(自身を含む): 53706240

約数和(自身を除く): 37811400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 23, 24, 26, 30, 39, 40, 46, 52, 60, 65, 69, 78, 92, 104, 115, 120, 130, 138, 156, 184, 195, 230, 260, 276, 299, 312, 345, 390, 443, 460, 520, 552, 598, 690, 780, 886, 897, 920, 1196, 1329, 1380, 1495, 1560, 1772, 1794, 2215, 2392, 2658, 2760, 2990, 3544, 3588, 4430, 4485, 5316, 5759, 5980, 6645, 7176, 8860, 8970, 10189, 10632, 11518, 11960, 13290, 17277, 17720, 17940, 20378, 23036, 26580, 28795, 30567, 34554, 35880, 40756, 46072, 50945, 53160, 57590, 61134, 69108, 81512, 86385, 101890, 115180, 122268, 132457, 138216, 152835, 172770, 203780, 230360, 244536, 264914, 305670, 345540, 397371, 407560, 529828, 611340, 662285, 691080, 794742, 1059656, 1222680, 1324570, 1589484, 1986855, 2649140, 3178968, 3973710, 5298280, 7947420, 15894840]

約数ペア:

[(1, 15894840), (2, 7947420), (3, 5298280), (4, 3973710), (5, 3178968), (6, 2649140), (8, 1986855), (10, 1589484), (12, 1324570), (13, 1222680), (15, 1059656), (20, 794742), (23, 691080), (24, 662285), (26, 611340), (30, 529828), (39, 407560), (40, 397371), (46, 345540), (52, 305670), (60, 264914), (65, 244536), (69, 230360), (78, 203780), (92, 172770), (104, 152835), (115, 138216), (120, 132457), (130, 122268), (138, 115180), (156, 101890), (184, 86385), (195, 81512), (230, 69108), (260, 61134), (276, 57590), (299, 53160), (312, 50945), (345, 46072), (390, 40756), (443, 35880), (460, 34554), (520, 30567), (552, 28795), (598, 26580), (690, 23036), (780, 20378), (886, 17940), (897, 17720), (920, 17277), (1196, 13290), (1329, 11960), (1380, 11518), (1495, 10632), (1560, 10189), (1772, 8970), (1794, 8860), (2215, 7176), (2392, 6645), (2658, 5980), (2760, 5759), (2990, 5316), (3544, 4485), (3588, 4430)]