154775920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{3461}}^1$

素因数の和:3530

約数の個数: 80

約数和(自身を含む): 396662112

約数和(自身を除く): 241886192

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 43, 52, 65, 80, 86, 104, 130, 172, 208, 215, 260, 344, 430, 520, 559, 688, 860, 1040, 1118, 1720, 2236, 2795, 3440, 3461, 4472, 5590, 6922, 8944, 11180, 13844, 17305, 22360, 27688, 34610, 44720, 44993, 55376, 69220, 89986, 138440, 148823, 179972, 224965, 276880, 297646, 359944, 449930, 595292, 719888, 744115, 899860, 1190584, 1488230, 1799720, 1934699, 2381168, 2976460, 3599440, 3869398, 5952920, 7738796, 9673495, 11905840, 15477592, 19346990, 30955184, 38693980, 77387960, 154775920]

約数ペア:

[(1, 154775920), (2, 77387960), (4, 38693980), (5, 30955184), (8, 19346990), (10, 15477592), (13, 11905840), (16, 9673495), (20, 7738796), (26, 5952920), (40, 3869398), (43, 3599440), (52, 2976460), (65, 2381168), (80, 1934699), (86, 1799720), (104, 1488230), (130, 1190584), (172, 899860), (208, 744115), (215, 719888), (260, 595292), (344, 449930), (430, 359944), (520, 297646), (559, 276880), (688, 224965), (860, 179972), (1040, 148823), (1118, 138440), (1720, 89986), (2236, 69220), (2795, 55376), (3440, 44993), (3461, 44720), (4472, 34610), (5590, 27688), (6922, 22360), (8944, 17305), (11180, 13844)]