123216080

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{461}}^1$

素因数の和:744

約数の個数: 80

約数和(自身を含む): 310386384

約数和(自身を除く): 187170304

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 257, 260, 461, 514, 520, 922, 1028, 1040, 1285, 1844, 2056, 2305, 2570, 3341, 3688, 4112, 4610, 5140, 5993, 6682, 7376, 9220, 10280, 11986, 13364, 16705, 18440, 20560, 23972, 26728, 29965, 33410, 36880, 47944, 53456, 59930, 66820, 95888, 118477, 119860, 133640, 236954, 239720, 267280, 473908, 479440, 592385, 947816, 1184770, 1540201, 1895632, 2369540, 3080402, 4739080, 6160804, 7701005, 9478160, 12321608, 15402010, 24643216, 30804020, 61608040, 123216080]

約数ペア:

[(1, 123216080), (2, 61608040), (4, 30804020), (5, 24643216), (8, 15402010), (10, 12321608), (13, 9478160), (16, 7701005), (20, 6160804), (26, 4739080), (40, 3080402), (52, 2369540), (65, 1895632), (80, 1540201), (104, 1184770), (130, 947816), (208, 592385), (257, 479440), (260, 473908), (461, 267280), (514, 239720), (520, 236954), (922, 133640), (1028, 119860), (1040, 118477), (1285, 95888), (1844, 66820), (2056, 59930), (2305, 53456), (2570, 47944), (3341, 36880), (3688, 33410), (4112, 29965), (4610, 26728), (5140, 23972), (5993, 20560), (6682, 18440), (7376, 16705), (9220, 13364), (10280, 11986)]