998590040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{853}}^1$

素因数の和:1021

約数の個数: 128

約数和(自身を含む): 2663660160

約数和(自身を除く): 1665070120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 37, 40, 56, 70, 74, 113, 140, 148, 185, 226, 259, 280, 296, 370, 452, 518, 565, 740, 791, 853, 904, 1036, 1130, 1295, 1480, 1582, 1706, 2072, 2260, 2590, 3164, 3412, 3955, 4181, 4265, 4520, 5180, 5971, 6328, 6824, 7910, 8362, 8530, 10360, 11942, 15820, 16724, 17060, 20905, 23884, 29267, 29855, 31561, 31640, 33448, 34120, 41810, 47768, 58534, 59710, 63122, 83620, 96389, 117068, 119420, 126244, 146335, 157805, 167240, 192778, 220927, 234136, 238840, 252488, 292670, 315610, 385556, 441854, 481945, 585340, 631220, 674723, 771112, 883708, 963890, 1104635, 1170680, 1262440, 1349446, 1767416, 1927780, 2209270, 2698892, 3373615, 3566393, 3855560, 4418540, 5397784, 6747230, 7132786, 8837080, 13494460, 14265572, 17831965, 24964751, 26988920, 28531144, 35663930, 49929502, 71327860, 99859004, 124823755, 142655720, 199718008, 249647510, 499295020, 998590040]

約数ペア:

[(1, 998590040), (2, 499295020), (4, 249647510), (5, 199718008), (7, 142655720), (8, 124823755), (10, 99859004), (14, 71327860), (20, 49929502), (28, 35663930), (35, 28531144), (37, 26988920), (40, 24964751), (56, 17831965), (70, 14265572), (74, 13494460), (113, 8837080), (140, 7132786), (148, 6747230), (185, 5397784), (226, 4418540), (259, 3855560), (280, 3566393), (296, 3373615), (370, 2698892), (452, 2209270), (518, 1927780), (565, 1767416), (740, 1349446), (791, 1262440), (853, 1170680), (904, 1104635), (1036, 963890), (1130, 883708), (1295, 771112), (1480, 674723), (1582, 631220), (1706, 585340), (2072, 481945), (2260, 441854), (2590, 385556), (3164, 315610), (3412, 292670), (3955, 252488), (4181, 238840), (4265, 234136), (4520, 220927), (5180, 192778), (5971, 167240), (6328, 157805), (6824, 146335), (7910, 126244), (8362, 119420), (8530, 117068), (10360, 96389), (11942, 83620), (15820, 63122), (16724, 59710), (17060, 58534), (20905, 47768), (23884, 41810), (29267, 34120), (29855, 33448), (31561, 31640)]