21948160

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1319}}^1$

素因数の和:1353

約数の個数: 72

約数和(自身を含む): 56659680

約数和(自身を除く): 34711520

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 520, 640, 832, 1040, 1280, 1319, 1664, 2080, 2638, 3328, 4160, 5276, 6595, 8320, 10552, 13190, 16640, 17147, 21104, 26380, 34294, 42208, 52760, 68588, 84416, 85735, 105520, 137176, 168832, 171470, 211040, 274352, 337664, 342940, 422080, 548704, 685880, 844160, 1097408, 1371760, 1688320, 2194816, 2743520, 4389632, 5487040, 10974080, 21948160]

約数ペア:

[(1, 21948160), (2, 10974080), (4, 5487040), (5, 4389632), (8, 2743520), (10, 2194816), (13, 1688320), (16, 1371760), (20, 1097408), (26, 844160), (32, 685880), (40, 548704), (52, 422080), (64, 342940), (65, 337664), (80, 274352), (104, 211040), (128, 171470), (130, 168832), (160, 137176), (208, 105520), (256, 85735), (260, 84416), (320, 68588), (416, 52760), (520, 42208), (640, 34294), (832, 26380), (1040, 21104), (1280, 17147), (1319, 16640), (1664, 13190), (2080, 10552), (2638, 8320), (3328, 6595), (4160, 5276)]