2981680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:134

約数の個数: 80

約数和(自身を含む): 7749504

約数和(自身を除く): 4767824

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 47, 52, 61, 65, 80, 94, 104, 122, 130, 188, 208, 235, 244, 260, 305, 376, 470, 488, 520, 610, 611, 752, 793, 940, 976, 1040, 1220, 1222, 1586, 1880, 2440, 2444, 2867, 3055, 3172, 3760, 3965, 4880, 4888, 5734, 6110, 6344, 7930, 9776, 11468, 12220, 12688, 14335, 15860, 22936, 24440, 28670, 31720, 37271, 45872, 48880, 57340, 63440, 74542, 114680, 149084, 186355, 229360, 298168, 372710, 596336, 745420, 1490840, 2981680]

約数ペア:

[(1, 2981680), (2, 1490840), (4, 745420), (5, 596336), (8, 372710), (10, 298168), (13, 229360), (16, 186355), (20, 149084), (26, 114680), (40, 74542), (47, 63440), (52, 57340), (61, 48880), (65, 45872), (80, 37271), (94, 31720), (104, 28670), (122, 24440), (130, 22936), (188, 15860), (208, 14335), (235, 12688), (244, 12220), (260, 11468), (305, 9776), (376, 7930), (470, 6344), (488, 6110), (520, 5734), (610, 4888), (611, 4880), (752, 3965), (793, 3760), (940, 3172), (976, 3055), (1040, 2867), (1220, 2444), (1222, 2440), (1586, 1880)]