65745680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{821}}^1$

素因数の和:865

約数の個数: 160

約数和(自身を含む): 205486848

約数和(自身を除く): 139741168

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 16, 20, 22, 26, 28, 35, 40, 44, 52, 55, 56, 65, 70, 77, 80, 88, 91, 104, 110, 112, 130, 140, 143, 154, 176, 182, 208, 220, 260, 280, 286, 308, 364, 385, 440, 455, 520, 560, 572, 616, 715, 728, 770, 821, 880, 910, 1001, 1040, 1144, 1232, 1430, 1456, 1540, 1642, 1820, 2002, 2288, 2860, 3080, 3284, 3640, 4004, 4105, 5005, 5720, 5747, 6160, 6568, 7280, 8008, 8210, 9031, 10010, 10673, 11440, 11494, 13136, 16016, 16420, 18062, 20020, 21346, 22988, 28735, 32840, 36124, 40040, 42692, 45155, 45976, 53365, 57470, 63217, 65680, 72248, 74711, 80080, 85384, 90310, 91952, 106730, 114940, 117403, 126434, 144496, 149422, 170768, 180620, 213460, 229880, 234806, 252868, 298844, 316085, 361240, 373555, 426920, 459760, 469612, 505736, 587015, 597688, 632170, 722480, 747110, 821821, 853840, 939224, 1011472, 1174030, 1195376, 1264340, 1494220, 1643642, 1878448, 2348060, 2528680, 2988440, 3287284, 4109105, 4696120, 5057360, 5976880, 6574568, 8218210, 9392240, 13149136, 16436420, 32872840, 65745680]

約数ペア:

[(1, 65745680), (2, 32872840), (4, 16436420), (5, 13149136), (7, 9392240), (8, 8218210), (10, 6574568), (11, 5976880), (13, 5057360), (14, 4696120), (16, 4109105), (20, 3287284), (22, 2988440), (26, 2528680), (28, 2348060), (35, 1878448), (40, 1643642), (44, 1494220), (52, 1264340), (55, 1195376), (56, 1174030), (65, 1011472), (70, 939224), (77, 853840), (80, 821821), (88, 747110), (91, 722480), (104, 632170), (110, 597688), (112, 587015), (130, 505736), (140, 469612), (143, 459760), (154, 426920), (176, 373555), (182, 361240), (208, 316085), (220, 298844), (260, 252868), (280, 234806), (286, 229880), (308, 213460), (364, 180620), (385, 170768), (440, 149422), (455, 144496), (520, 126434), (560, 117403), (572, 114940), (616, 106730), (715, 91952), (728, 90310), (770, 85384), (821, 80080), (880, 74711), (910, 72248), (1001, 65680), (1040, 63217), (1144, 57470), (1232, 53365), (1430, 45976), (1456, 45155), (1540, 42692), (1642, 40040), (1820, 36124), (2002, 32840), (2288, 28735), (2860, 22988), (3080, 21346), (3284, 20020), (3640, 18062), (4004, 16420), (4105, 16016), (5005, 13136), (5720, 11494), (5747, 11440), (6160, 10673), (6568, 10010), (7280, 9031), (8008, 8210)]