15895880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{397}}^1$

素因数の和:439

約数の個数: 128

約数和(自身を含む): 48142080

約数和(自身を除く): 32246200

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 20, 22, 26, 28, 35, 40, 44, 52, 55, 56, 65, 70, 77, 88, 91, 104, 110, 130, 140, 143, 154, 182, 220, 260, 280, 286, 308, 364, 385, 397, 440, 455, 520, 572, 616, 715, 728, 770, 794, 910, 1001, 1144, 1430, 1540, 1588, 1820, 1985, 2002, 2779, 2860, 3080, 3176, 3640, 3970, 4004, 4367, 5005, 5161, 5558, 5720, 7940, 8008, 8734, 10010, 10322, 11116, 13895, 15880, 17468, 20020, 20644, 21835, 22232, 25805, 27790, 30569, 34936, 36127, 40040, 41288, 43670, 51610, 55580, 56771, 61138, 72254, 87340, 103220, 111160, 113542, 122276, 144508, 152845, 174680, 180635, 206440, 227084, 244552, 283855, 289016, 305690, 361270, 397397, 454168, 567710, 611380, 722540, 794794, 1135420, 1222760, 1445080, 1589588, 1986985, 2270840, 3179176, 3973970, 7947940, 15895880]

約数ペア:

[(1, 15895880), (2, 7947940), (4, 3973970), (5, 3179176), (7, 2270840), (8, 1986985), (10, 1589588), (11, 1445080), (13, 1222760), (14, 1135420), (20, 794794), (22, 722540), (26, 611380), (28, 567710), (35, 454168), (40, 397397), (44, 361270), (52, 305690), (55, 289016), (56, 283855), (65, 244552), (70, 227084), (77, 206440), (88, 180635), (91, 174680), (104, 152845), (110, 144508), (130, 122276), (140, 113542), (143, 111160), (154, 103220), (182, 87340), (220, 72254), (260, 61138), (280, 56771), (286, 55580), (308, 51610), (364, 43670), (385, 41288), (397, 40040), (440, 36127), (455, 34936), (520, 30569), (572, 27790), (616, 25805), (715, 22232), (728, 21835), (770, 20644), (794, 20020), (910, 17468), (1001, 15880), (1144, 13895), (1430, 11116), (1540, 10322), (1588, 10010), (1820, 8734), (1985, 8008), (2002, 7940), (2779, 5720), (2860, 5558), (3080, 5161), (3176, 5005), (3640, 4367), (3970, 4004)]