81248440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{101}}^1$

素因数の和:162

約数の個数: 192

約数和(自身を含む): 241911360

約数和(自身を除く): 160662920

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 17, 20, 26, 28, 34, 35, 40, 52, 56, 65, 68, 70, 85, 91, 101, 104, 119, 130, 136, 140, 169, 170, 182, 202, 221, 238, 260, 280, 338, 340, 364, 404, 442, 455, 476, 505, 520, 595, 676, 680, 707, 728, 808, 845, 884, 910, 952, 1010, 1105, 1183, 1190, 1313, 1352, 1414, 1547, 1690, 1717, 1768, 1820, 2020, 2210, 2366, 2380, 2626, 2828, 2873, 3094, 3380, 3434, 3535, 3640, 4040, 4420, 4732, 4760, 5252, 5656, 5746, 5915, 6188, 6565, 6760, 6868, 7070, 7735, 8585, 8840, 9191, 9464, 10504, 11492, 11830, 12019, 12376, 13130, 13736, 14140, 14365, 15470, 17069, 17170, 18382, 20111, 22321, 22984, 23660, 24038, 26260, 28280, 28730, 30940, 34138, 34340, 36764, 40222, 44642, 45955, 47320, 48076, 52520, 57460, 60095, 61880, 68276, 68680, 73528, 80444, 85345, 89284, 91910, 96152, 100555, 111605, 114920, 119483, 120190, 136552, 156247, 160888, 170690, 178568, 183820, 201110, 223210, 238966, 240380, 290173, 312494, 341380, 367640, 402220, 446420, 477932, 480760, 580346, 597415, 624988, 682760, 781235, 804440, 892840, 955864, 1160692, 1194830, 1249976, 1450865, 1562470, 2031211, 2321384, 2389660, 2901730, 3124940, 4062422, 4779320, 5803460, 6249880, 8124844, 10156055, 11606920, 16249688, 20312110, 40624220, 81248440]

約数ペア:

[(1, 81248440), (2, 40624220), (4, 20312110), (5, 16249688), (7, 11606920), (8, 10156055), (10, 8124844), (13, 6249880), (14, 5803460), (17, 4779320), (20, 4062422), (26, 3124940), (28, 2901730), (34, 2389660), (35, 2321384), (40, 2031211), (52, 1562470), (56, 1450865), (65, 1249976), (68, 1194830), (70, 1160692), (85, 955864), (91, 892840), (101, 804440), (104, 781235), (119, 682760), (130, 624988), (136, 597415), (140, 580346), (169, 480760), (170, 477932), (182, 446420), (202, 402220), (221, 367640), (238, 341380), (260, 312494), (280, 290173), (338, 240380), (340, 238966), (364, 223210), (404, 201110), (442, 183820), (455, 178568), (476, 170690), (505, 160888), (520, 156247), (595, 136552), (676, 120190), (680, 119483), (707, 114920), (728, 111605), (808, 100555), (845, 96152), (884, 91910), (910, 89284), (952, 85345), (1010, 80444), (1105, 73528), (1183, 68680), (1190, 68276), (1313, 61880), (1352, 60095), (1414, 57460), (1547, 52520), (1690, 48076), (1717, 47320), (1768, 45955), (1820, 44642), (2020, 40222), (2210, 36764), (2366, 34340), (2380, 34138), (2626, 30940), (2828, 28730), (2873, 28280), (3094, 26260), (3380, 24038), (3434, 23660), (3535, 22984), (3640, 22321), (4040, 20111), (4420, 18382), (4732, 17170), (4760, 17069), (5252, 15470), (5656, 14365), (5746, 14140), (5915, 13736), (6188, 13130), (6565, 12376), (6760, 12019), (6868, 11830), (7070, 11492), (7735, 10504), (8585, 9464), (8840, 9191)]