261313320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{181}}^1\times {\mathrm{227}}^1$

素因数の和:475

約数の個数: 128

約数和(自身を含む): 806682240

約数和(自身を除く): 545368920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 53, 60, 106, 120, 159, 181, 212, 227, 265, 318, 362, 424, 454, 530, 543, 636, 681, 724, 795, 905, 908, 1060, 1086, 1135, 1272, 1362, 1448, 1590, 1810, 1816, 2120, 2172, 2270, 2715, 2724, 3180, 3405, 3620, 4344, 4540, 5430, 5448, 6360, 6810, 7240, 9080, 9593, 10860, 12031, 13620, 19186, 21720, 24062, 27240, 28779, 36093, 38372, 41087, 47965, 48124, 57558, 60155, 72186, 76744, 82174, 95930, 96248, 115116, 120310, 123261, 143895, 144372, 164348, 180465, 191860, 205435, 230232, 240620, 246522, 287790, 288744, 328696, 360930, 383720, 410870, 481240, 493044, 575580, 616305, 721860, 821740, 986088, 1151160, 1232610, 1443720, 1643480, 2177611, 2465220, 4355222, 4930440, 6532833, 8710444, 10888055, 13065666, 17420888, 21776110, 26131332, 32664165, 43552220, 52262664, 65328330, 87104440, 130656660, 261313320]

約数ペア:

[(1, 261313320), (2, 130656660), (3, 87104440), (4, 65328330), (5, 52262664), (6, 43552220), (8, 32664165), (10, 26131332), (12, 21776110), (15, 17420888), (20, 13065666), (24, 10888055), (30, 8710444), (40, 6532833), (53, 4930440), (60, 4355222), (106, 2465220), (120, 2177611), (159, 1643480), (181, 1443720), (212, 1232610), (227, 1151160), (265, 986088), (318, 821740), (362, 721860), (424, 616305), (454, 575580), (530, 493044), (543, 481240), (636, 410870), (681, 383720), (724, 360930), (795, 328696), (905, 288744), (908, 287790), (1060, 246522), (1086, 240620), (1135, 230232), (1272, 205435), (1362, 191860), (1448, 180465), (1590, 164348), (1810, 144372), (1816, 143895), (2120, 123261), (2172, 120310), (2270, 115116), (2715, 96248), (2724, 95930), (3180, 82174), (3405, 76744), (3620, 72186), (4344, 60155), (4540, 57558), (5430, 48124), (5448, 47965), (6360, 41087), (6810, 38372), (7240, 36093), (9080, 28779), (9593, 27240), (10860, 24062), (12031, 21720), (13620, 19186)]