1275560

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1$

素因数の和:258

約数の個数: 64

約数和(自身を含む): 3386880

約数和(自身を除く): 2111320

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 130, 143, 220, 223, 260, 286, 440, 446, 520, 572, 715, 892, 1115, 1144, 1430, 1784, 2230, 2453, 2860, 2899, 4460, 4906, 5720, 5798, 8920, 9812, 11596, 12265, 14495, 19624, 23192, 24530, 28990, 31889, 49060, 57980, 63778, 98120, 115960, 127556, 159445, 255112, 318890, 637780, 1275560]

約数ペア:

[(1, 1275560), (2, 637780), (4, 318890), (5, 255112), (8, 159445), (10, 127556), (11, 115960), (13, 98120), (20, 63778), (22, 57980), (26, 49060), (40, 31889), (44, 28990), (52, 24530), (55, 23192), (65, 19624), (88, 14495), (104, 12265), (110, 11596), (130, 9812), (143, 8920), (220, 5798), (223, 5720), (260, 4906), (286, 4460), (440, 2899), (446, 2860), (520, 2453), (572, 2230), (715, 1784), (892, 1430), (1115, 1144)]