81914560

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1$

素因数の和:163

約数の個数: 224

約数和(自身を含む): 250911360

約数和(自身を除く): 168996800

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 29, 32, 35, 40, 52, 56, 58, 64, 65, 70, 80, 91, 97, 104, 112, 116, 130, 140, 145, 160, 182, 194, 203, 208, 224, 232, 260, 280, 290, 320, 364, 377, 388, 406, 416, 448, 455, 464, 485, 520, 560, 580, 679, 728, 754, 776, 812, 832, 910, 928, 970, 1015, 1040, 1120, 1160, 1261, 1358, 1456, 1508, 1552, 1624, 1820, 1856, 1885, 1940, 2030, 2080, 2240, 2320, 2522, 2639, 2716, 2813, 2912, 3016, 3104, 3248, 3395, 3640, 3770, 3880, 4060, 4160, 4640, 5044, 5278, 5432, 5626, 5824, 6032, 6208, 6305, 6496, 6790, 7280, 7540, 7760, 8120, 8827, 9280, 10088, 10556, 10864, 11252, 12064, 12610, 12992, 13195, 13580, 14065, 14560, 15080, 15520, 16240, 17654, 19691, 20176, 21112, 21728, 22504, 24128, 25220, 26390, 27160, 28130, 29120, 30160, 31040, 32480, 35308, 36569, 39382, 40352, 42224, 43456, 44135, 45008, 50440, 52780, 54320, 56260, 60320, 64960, 70616, 73138, 78764, 80704, 84448, 88270, 90016, 98455, 100880, 105560, 108640, 112520, 120640, 141232, 146276, 157528, 168896, 176540, 180032, 182845, 196910, 201760, 211120, 217280, 225040, 255983, 282464, 292552, 315056, 353080, 365690, 393820, 403520, 422240, 450080, 511966, 564928, 585104, 630112, 706160, 731380, 787640, 844480, 900160, 1023932, 1170208, 1260224, 1279915, 1412320, 1462760, 1575280, 2047864, 2340416, 2559830, 2824640, 2925520, 3150560, 4095728, 5119660, 5851040, 6301120, 8191456, 10239320, 11702080, 16382912, 20478640, 40957280, 81914560]

約数ペア:

[(1, 81914560), (2, 40957280), (4, 20478640), (5, 16382912), (7, 11702080), (8, 10239320), (10, 8191456), (13, 6301120), (14, 5851040), (16, 5119660), (20, 4095728), (26, 3150560), (28, 2925520), (29, 2824640), (32, 2559830), (35, 2340416), (40, 2047864), (52, 1575280), (56, 1462760), (58, 1412320), (64, 1279915), (65, 1260224), (70, 1170208), (80, 1023932), (91, 900160), (97, 844480), (104, 787640), (112, 731380), (116, 706160), (130, 630112), (140, 585104), (145, 564928), (160, 511966), (182, 450080), (194, 422240), (203, 403520), (208, 393820), (224, 365690), (232, 353080), (260, 315056), (280, 292552), (290, 282464), (320, 255983), (364, 225040), (377, 217280), (388, 211120), (406, 201760), (416, 196910), (448, 182845), (455, 180032), (464, 176540), (485, 168896), (520, 157528), (560, 146276), (580, 141232), (679, 120640), (728, 112520), (754, 108640), (776, 105560), (812, 100880), (832, 98455), (910, 90016), (928, 88270), (970, 84448), (1015, 80704), (1040, 78764), (1120, 73138), (1160, 70616), (1261, 64960), (1358, 60320), (1456, 56260), (1508, 54320), (1552, 52780), (1624, 50440), (1820, 45008), (1856, 44135), (1885, 43456), (1940, 42224), (2030, 40352), (2080, 39382), (2240, 36569), (2320, 35308), (2522, 32480), (2639, 31040), (2716, 30160), (2813, 29120), (2912, 28130), (3016, 27160), (3104, 26390), (3248, 25220), (3395, 24128), (3640, 22504), (3770, 21728), (3880, 21112), (4060, 20176), (4160, 19691), (4640, 17654), (5044, 16240), (5278, 15520), (5432, 15080), (5626, 14560), (5824, 14065), (6032, 13580), (6208, 13195), (6305, 12992), (6496, 12610), (6790, 12064), (7280, 11252), (7540, 10864), (7760, 10556), (8120, 10088), (8827, 9280)]