261906736

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^2\times {\mathrm{101}}^1\times {\mathrm{137}}^1$

素因数の和:279

約数の個数: 120

約数和(自身を含む): 638825184

約数和(自身を除く): 376918448

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 101, 104, 112, 137, 169, 182, 202, 208, 274, 338, 364, 404, 548, 676, 707, 728, 808, 959, 1096, 1183, 1313, 1352, 1414, 1456, 1616, 1781, 1918, 2192, 2366, 2626, 2704, 2828, 3562, 3836, 4732, 5252, 5656, 7124, 7672, 9191, 9464, 10504, 11312, 12467, 13837, 14248, 15344, 17069, 18382, 18928, 21008, 23153, 24934, 27674, 28496, 34138, 36764, 46306, 49868, 55348, 68276, 73528, 92612, 96859, 99736, 110696, 119483, 136552, 147056, 162071, 179881, 185224, 193718, 199472, 221392, 238966, 273104, 324142, 359762, 370448, 387436, 477932, 648284, 719524, 774872, 955864, 1259167, 1296568, 1439048, 1549744, 1911728, 2338453, 2518334, 2593136, 2878096, 4676906, 5036668, 9353812, 10073336, 16369171, 18707624, 20146672, 32738342, 37415248, 65476684, 130953368, 261906736]

約数ペア:

[(1, 261906736), (2, 130953368), (4, 65476684), (7, 37415248), (8, 32738342), (13, 20146672), (14, 18707624), (16, 16369171), (26, 10073336), (28, 9353812), (52, 5036668), (56, 4676906), (91, 2878096), (101, 2593136), (104, 2518334), (112, 2338453), (137, 1911728), (169, 1549744), (182, 1439048), (202, 1296568), (208, 1259167), (274, 955864), (338, 774872), (364, 719524), (404, 648284), (548, 477932), (676, 387436), (707, 370448), (728, 359762), (808, 324142), (959, 273104), (1096, 238966), (1183, 221392), (1313, 199472), (1352, 193718), (1414, 185224), (1456, 179881), (1616, 162071), (1781, 147056), (1918, 136552), (2192, 119483), (2366, 110696), (2626, 99736), (2704, 96859), (2828, 92612), (3562, 73528), (3836, 68276), (4732, 55348), (5252, 49868), (5656, 46306), (7124, 36764), (7672, 34138), (9191, 28496), (9464, 27674), (10504, 24934), (11312, 23153), (12467, 21008), (13837, 18928), (14248, 18382), (15344, 17069)]