88720840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{2797}}^1$

素因数の和:2882

約数の個数: 64

約数和(自身を含む): 218579760

約数和(自身を除く): 129858920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 61, 65, 104, 122, 130, 244, 260, 305, 488, 520, 610, 793, 1220, 1586, 2440, 2797, 3172, 3965, 5594, 6344, 7930, 11188, 13985, 15860, 22376, 27970, 31720, 36361, 55940, 72722, 111880, 145444, 170617, 181805, 290888, 341234, 363610, 682468, 727220, 853085, 1364936, 1454440, 1706170, 2218021, 3412340, 4436042, 6824680, 8872084, 11090105, 17744168, 22180210, 44360420, 88720840]

約数ペア:

[(1, 88720840), (2, 44360420), (4, 22180210), (5, 17744168), (8, 11090105), (10, 8872084), (13, 6824680), (20, 4436042), (26, 3412340), (40, 2218021), (52, 1706170), (61, 1454440), (65, 1364936), (104, 853085), (122, 727220), (130, 682468), (244, 363610), (260, 341234), (305, 290888), (488, 181805), (520, 170617), (610, 145444), (793, 111880), (1220, 72722), (1586, 55940), (2440, 36361), (2797, 31720), (3172, 27970), (3965, 22376), (5594, 15860), (6344, 13985), (7930, 11188)]