278889260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{313}}^1$

素因数の和:507

約数の個数: 96

約数和(自身を含む): 664675200

約数和(自身を除く): 385785940

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 26, 46, 52, 65, 92, 115, 130, 149, 230, 260, 298, 299, 313, 460, 596, 598, 626, 745, 1196, 1252, 1490, 1495, 1565, 1937, 2980, 2990, 3130, 3427, 3874, 4069, 5980, 6260, 6854, 7199, 7748, 8138, 9685, 13708, 14398, 16276, 17135, 19370, 20345, 28796, 34270, 35995, 38740, 40690, 44551, 46637, 68540, 71990, 81380, 89102, 93274, 93587, 143980, 178204, 186548, 187174, 222755, 233185, 374348, 445510, 466370, 467935, 606281, 891020, 932740, 935870, 1072651, 1212562, 1871740, 2145302, 2425124, 3031405, 4290604, 5363255, 6062810, 10726510, 12125620, 13944463, 21453020, 27888926, 55777852, 69722315, 139444630, 278889260]

約数ペア:

[(1, 278889260), (2, 139444630), (4, 69722315), (5, 55777852), (10, 27888926), (13, 21453020), (20, 13944463), (23, 12125620), (26, 10726510), (46, 6062810), (52, 5363255), (65, 4290604), (92, 3031405), (115, 2425124), (130, 2145302), (149, 1871740), (230, 1212562), (260, 1072651), (298, 935870), (299, 932740), (313, 891020), (460, 606281), (596, 467935), (598, 466370), (626, 445510), (745, 374348), (1196, 233185), (1252, 222755), (1490, 187174), (1495, 186548), (1565, 178204), (1937, 143980), (2980, 93587), (2990, 93274), (3130, 89102), (3427, 81380), (3874, 71990), (4069, 68540), (5980, 46637), (6260, 44551), (6854, 40690), (7199, 38740), (7748, 35995), (8138, 34270), (9685, 28796), (13708, 20345), (14398, 19370), (16276, 17135)]