201955240

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:235

約数の個数: 128

約数和(自身を含む): 503884800

約数和(自身を除く): 301929560

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 47, 68, 71, 85, 89, 94, 136, 142, 170, 178, 188, 235, 284, 340, 355, 356, 376, 445, 470, 568, 680, 710, 712, 799, 890, 940, 1207, 1420, 1513, 1598, 1780, 1880, 2414, 2840, 3026, 3196, 3337, 3560, 3995, 4183, 4828, 6035, 6052, 6319, 6392, 6674, 7565, 7990, 8366, 9656, 12070, 12104, 12638, 13348, 15130, 15980, 16685, 16732, 20915, 24140, 25276, 26696, 30260, 31595, 31960, 33370, 33464, 41830, 48280, 50552, 56729, 60520, 63190, 66740, 71111, 83660, 107423, 113458, 126380, 133480, 142222, 167320, 214846, 226916, 252760, 283645, 284444, 296993, 355555, 429692, 453832, 537115, 567290, 568888, 593986, 711110, 859384, 1074230, 1134580, 1187972, 1422220, 1484965, 2148460, 2269160, 2375944, 2844440, 2969930, 4296920, 5048881, 5939860, 10097762, 11879720, 20195524, 25244405, 40391048, 50488810, 100977620, 201955240]

約数ペア:

[(1, 201955240), (2, 100977620), (4, 50488810), (5, 40391048), (8, 25244405), (10, 20195524), (17, 11879720), (20, 10097762), (34, 5939860), (40, 5048881), (47, 4296920), (68, 2969930), (71, 2844440), (85, 2375944), (89, 2269160), (94, 2148460), (136, 1484965), (142, 1422220), (170, 1187972), (178, 1134580), (188, 1074230), (235, 859384), (284, 711110), (340, 593986), (355, 568888), (356, 567290), (376, 537115), (445, 453832), (470, 429692), (568, 355555), (680, 296993), (710, 284444), (712, 283645), (799, 252760), (890, 226916), (940, 214846), (1207, 167320), (1420, 142222), (1513, 133480), (1598, 126380), (1780, 113458), (1880, 107423), (2414, 83660), (2840, 71111), (3026, 66740), (3196, 63190), (3337, 60520), (3560, 56729), (3995, 50552), (4183, 48280), (4828, 41830), (6035, 33464), (6052, 33370), (6319, 31960), (6392, 31595), (6674, 30260), (7565, 26696), (7990, 25276), (8366, 24140), (9656, 20915), (12070, 16732), (12104, 16685), (12638, 15980), (13348, 15130)]