64351040

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{499}}^1$

素因数の和:560

約数の個数: 112

約数和(自身を含む): 170688000

約数和(自身を除く): 106336960

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 130, 155, 160, 208, 248, 260, 310, 320, 403, 416, 496, 499, 520, 620, 806, 832, 992, 998, 1040, 1240, 1612, 1984, 1996, 2015, 2080, 2480, 2495, 3224, 3992, 4030, 4160, 4960, 4990, 6448, 6487, 7984, 8060, 9920, 9980, 12896, 12974, 15469, 15968, 16120, 19960, 25792, 25948, 30938, 31936, 32240, 32435, 39920, 51896, 61876, 64480, 64870, 77345, 79840, 103792, 123752, 128960, 129740, 154690, 159680, 201097, 207584, 247504, 259480, 309380, 402194, 415168, 495008, 518960, 618760, 804388, 990016, 1005485, 1037920, 1237520, 1608776, 2010970, 2075840, 2475040, 3217552, 4021940, 4950080, 6435104, 8043880, 12870208, 16087760, 32175520, 64351040]

約数ペア:

[(1, 64351040), (2, 32175520), (4, 16087760), (5, 12870208), (8, 8043880), (10, 6435104), (13, 4950080), (16, 4021940), (20, 3217552), (26, 2475040), (31, 2075840), (32, 2010970), (40, 1608776), (52, 1237520), (62, 1037920), (64, 1005485), (65, 990016), (80, 804388), (104, 618760), (124, 518960), (130, 495008), (155, 415168), (160, 402194), (208, 309380), (248, 259480), (260, 247504), (310, 207584), (320, 201097), (403, 159680), (416, 154690), (496, 129740), (499, 128960), (520, 123752), (620, 103792), (806, 79840), (832, 77345), (992, 64870), (998, 64480), (1040, 61876), (1240, 51896), (1612, 39920), (1984, 32435), (1996, 32240), (2015, 31936), (2080, 30938), (2480, 25948), (2495, 25792), (3224, 19960), (3992, 16120), (4030, 15968), (4160, 15469), (4960, 12974), (4990, 12896), (6448, 9980), (6487, 9920), (7984, 8060)]