201996180

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{89}}^1\times {\mathrm{467}}^1$

素因数の和:580

約数の個数: 144

約数和(自身を含む): 643930560

約数和(自身を除く): 441934380

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 89, 90, 108, 135, 162, 178, 180, 243, 267, 270, 324, 356, 405, 445, 467, 486, 534, 540, 801, 810, 890, 934, 972, 1068, 1215, 1335, 1401, 1602, 1620, 1780, 1868, 2335, 2403, 2430, 2670, 2802, 3204, 4005, 4203, 4670, 4806, 4860, 5340, 5604, 7005, 7209, 8010, 8406, 9340, 9612, 12015, 12609, 14010, 14418, 16020, 16812, 21015, 21627, 24030, 25218, 28020, 28836, 36045, 37827, 41563, 42030, 43254, 48060, 50436, 63045, 72090, 75654, 83126, 84060, 86508, 108135, 113481, 124689, 126090, 144180, 151308, 166252, 189135, 207815, 216270, 226962, 249378, 252180, 374067, 378270, 415630, 432540, 453924, 498756, 567405, 623445, 748134, 756540, 831260, 1122201, 1134810, 1246890, 1496268, 1870335, 2244402, 2269620, 2493780, 3366603, 3740670, 4488804, 5611005, 6733206, 7481340, 10099809, 11222010, 13466412, 16833015, 20199618, 22444020, 33666030, 40399236, 50499045, 67332060, 100998090, 201996180]

約数ペア:

[(1, 201996180), (2, 100998090), (3, 67332060), (4, 50499045), (5, 40399236), (6, 33666030), (9, 22444020), (10, 20199618), (12, 16833015), (15, 13466412), (18, 11222010), (20, 10099809), (27, 7481340), (30, 6733206), (36, 5611005), (45, 4488804), (54, 3740670), (60, 3366603), (81, 2493780), (89, 2269620), (90, 2244402), (108, 1870335), (135, 1496268), (162, 1246890), (178, 1134810), (180, 1122201), (243, 831260), (267, 756540), (270, 748134), (324, 623445), (356, 567405), (405, 498756), (445, 453924), (467, 432540), (486, 415630), (534, 378270), (540, 374067), (801, 252180), (810, 249378), (890, 226962), (934, 216270), (972, 207815), (1068, 189135), (1215, 166252), (1335, 151308), (1401, 144180), (1602, 126090), (1620, 124689), (1780, 113481), (1868, 108135), (2335, 86508), (2403, 84060), (2430, 83126), (2670, 75654), (2802, 72090), (3204, 63045), (4005, 50436), (4203, 48060), (4670, 43254), (4806, 42030), (4860, 41563), (5340, 37827), (5604, 36045), (7005, 28836), (7209, 28020), (8010, 25218), (8406, 24030), (9340, 21627), (9612, 21015), (12015, 16812), (12609, 16020), (14010, 14418)]