20620890

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{389}}^1$

素因数の和:452

約数の個数: 96

約数和(自身を含む): 58406400

約数和(自身を除く): 37785510

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 30, 31, 38, 45, 57, 62, 90, 93, 95, 114, 155, 171, 186, 190, 279, 285, 310, 342, 389, 465, 558, 570, 589, 778, 855, 930, 1167, 1178, 1395, 1710, 1767, 1945, 2334, 2790, 2945, 3501, 3534, 3890, 5301, 5835, 5890, 7002, 7391, 8835, 10602, 11670, 12059, 14782, 17505, 17670, 22173, 24118, 26505, 35010, 36177, 36955, 44346, 53010, 60295, 66519, 72354, 73910, 108531, 110865, 120590, 133038, 180885, 217062, 221730, 229121, 332595, 361770, 458242, 542655, 665190, 687363, 1085310, 1145605, 1374726, 2062089, 2291210, 3436815, 4124178, 6873630, 10310445, 20620890]

約数ペア:

[(1, 20620890), (2, 10310445), (3, 6873630), (5, 4124178), (6, 3436815), (9, 2291210), (10, 2062089), (15, 1374726), (18, 1145605), (19, 1085310), (30, 687363), (31, 665190), (38, 542655), (45, 458242), (57, 361770), (62, 332595), (90, 229121), (93, 221730), (95, 217062), (114, 180885), (155, 133038), (171, 120590), (186, 110865), (190, 108531), (279, 73910), (285, 72354), (310, 66519), (342, 60295), (389, 53010), (465, 44346), (558, 36955), (570, 36177), (589, 35010), (778, 26505), (855, 24118), (930, 22173), (1167, 17670), (1178, 17505), (1395, 14782), (1710, 12059), (1767, 11670), (1945, 10602), (2334, 8835), (2790, 7391), (2945, 7002), (3501, 5890), (3534, 5835), (3890, 5301)]