2039440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1$

素因数の和:116

約数の個数: 80

約数和(自身を含む): 5343408

約数和(自身を除く): 3303968

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 37, 40, 52, 53, 65, 74, 80, 104, 106, 130, 148, 185, 208, 212, 260, 265, 296, 370, 424, 481, 520, 530, 592, 689, 740, 848, 962, 1040, 1060, 1378, 1480, 1924, 1961, 2120, 2405, 2756, 2960, 3445, 3848, 3922, 4240, 4810, 5512, 6890, 7696, 7844, 9620, 9805, 11024, 13780, 15688, 19240, 19610, 25493, 27560, 31376, 38480, 39220, 50986, 55120, 78440, 101972, 127465, 156880, 203944, 254930, 407888, 509860, 1019720, 2039440]

約数ペア:

[(1, 2039440), (2, 1019720), (4, 509860), (5, 407888), (8, 254930), (10, 203944), (13, 156880), (16, 127465), (20, 101972), (26, 78440), (37, 55120), (40, 50986), (52, 39220), (53, 38480), (65, 31376), (74, 27560), (80, 25493), (104, 19610), (106, 19240), (130, 15688), (148, 13780), (185, 11024), (208, 9805), (212, 9620), (260, 7844), (265, 7696), (296, 6890), (370, 5512), (424, 4810), (481, 4240), (520, 3922), (530, 3848), (592, 3445), (689, 2960), (740, 2756), (848, 2405), (962, 2120), (1040, 1961), (1060, 1924), (1378, 1480)]