64201760

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{431}}^1$

素因数の和:479

約数の個数: 144

約数和(自身を含む): 186157440

約数和(自身を除く): 121955680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 49, 56, 70, 76, 80, 95, 98, 112, 133, 140, 152, 160, 190, 196, 224, 245, 266, 280, 304, 380, 392, 431, 490, 532, 560, 608, 665, 760, 784, 862, 931, 980, 1064, 1120, 1330, 1520, 1568, 1724, 1862, 1960, 2128, 2155, 2660, 3017, 3040, 3448, 3724, 3920, 4256, 4310, 4655, 5320, 6034, 6896, 7448, 7840, 8189, 8620, 9310, 10640, 12068, 13792, 14896, 15085, 16378, 17240, 18620, 21119, 21280, 24136, 29792, 30170, 32756, 34480, 37240, 40945, 42238, 48272, 57323, 60340, 65512, 68960, 74480, 81890, 84476, 96544, 105595, 114646, 120680, 131024, 148960, 163780, 168952, 211190, 229292, 241360, 262048, 286615, 327560, 337904, 401261, 422380, 458584, 482720, 573230, 655120, 675808, 802522, 844760, 917168, 1146460, 1310240, 1605044, 1689520, 1834336, 2006305, 2292920, 3210088, 3379040, 4012610, 4585840, 6420176, 8025220, 9171680, 12840352, 16050440, 32100880, 64201760]

約数ペア:

[(1, 64201760), (2, 32100880), (4, 16050440), (5, 12840352), (7, 9171680), (8, 8025220), (10, 6420176), (14, 4585840), (16, 4012610), (19, 3379040), (20, 3210088), (28, 2292920), (32, 2006305), (35, 1834336), (38, 1689520), (40, 1605044), (49, 1310240), (56, 1146460), (70, 917168), (76, 844760), (80, 802522), (95, 675808), (98, 655120), (112, 573230), (133, 482720), (140, 458584), (152, 422380), (160, 401261), (190, 337904), (196, 327560), (224, 286615), (245, 262048), (266, 241360), (280, 229292), (304, 211190), (380, 168952), (392, 163780), (431, 148960), (490, 131024), (532, 120680), (560, 114646), (608, 105595), (665, 96544), (760, 84476), (784, 81890), (862, 74480), (931, 68960), (980, 65512), (1064, 60340), (1120, 57323), (1330, 48272), (1520, 42238), (1568, 40945), (1724, 37240), (1862, 34480), (1960, 32756), (2128, 30170), (2155, 29792), (2660, 24136), (3017, 21280), (3040, 21119), (3448, 18620), (3724, 17240), (3920, 16378), (4256, 15085), (4310, 14896), (4655, 13792), (5320, 12068), (6034, 10640), (6896, 9310), (7448, 8620), (7840, 8189)]