21887840

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{619}}^1$

素因数の和:664

約数の個数: 96

約数和(自身を含む): 59058720

約数和(自身を除く): 37170880

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 32, 34, 40, 52, 65, 68, 80, 85, 104, 130, 136, 160, 170, 208, 221, 260, 272, 340, 416, 442, 520, 544, 619, 680, 884, 1040, 1105, 1238, 1360, 1768, 2080, 2210, 2476, 2720, 3095, 3536, 4420, 4952, 6190, 7072, 8047, 8840, 9904, 10523, 12380, 16094, 17680, 19808, 21046, 24760, 32188, 35360, 40235, 42092, 49520, 52615, 64376, 80470, 84184, 99040, 105230, 128752, 136799, 160940, 168368, 210460, 257504, 273598, 321880, 336736, 420920, 547196, 643760, 683995, 841840, 1094392, 1287520, 1367990, 1683680, 2188784, 2735980, 4377568, 5471960, 10943920, 21887840]

約数ペア:

[(1, 21887840), (2, 10943920), (4, 5471960), (5, 4377568), (8, 2735980), (10, 2188784), (13, 1683680), (16, 1367990), (17, 1287520), (20, 1094392), (26, 841840), (32, 683995), (34, 643760), (40, 547196), (52, 420920), (65, 336736), (68, 321880), (80, 273598), (85, 257504), (104, 210460), (130, 168368), (136, 160940), (160, 136799), (170, 128752), (208, 105230), (221, 99040), (260, 84184), (272, 80470), (340, 64376), (416, 52615), (442, 49520), (520, 42092), (544, 40235), (619, 35360), (680, 32188), (884, 24760), (1040, 21046), (1105, 19808), (1238, 17680), (1360, 16094), (1768, 12380), (2080, 10523), (2210, 9904), (2476, 8840), (2720, 8047), (3095, 7072), (3536, 6190), (4420, 4952)]