20285640

素因数分解:

$2^3\times 3^5\times 5^1\times {\mathrm{2087}}^1$

素因数の和:2113

約数の個数: 96

約数和(自身を含む): 68402880

約数和(自身を除く): 48117240

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 243, 270, 324, 360, 405, 486, 540, 648, 810, 972, 1080, 1215, 1620, 1944, 2087, 2430, 3240, 4174, 4860, 6261, 8348, 9720, 10435, 12522, 16696, 18783, 20870, 25044, 31305, 37566, 41740, 50088, 56349, 62610, 75132, 83480, 93915, 112698, 125220, 150264, 169047, 187830, 225396, 250440, 281745, 338094, 375660, 450792, 507141, 563490, 676188, 751320, 845235, 1014282, 1126980, 1352376, 1690470, 2028564, 2253960, 2535705, 3380940, 4057128, 5071410, 6761880, 10142820, 20285640]

約数ペア:

[(1, 20285640), (2, 10142820), (3, 6761880), (4, 5071410), (5, 4057128), (6, 3380940), (8, 2535705), (9, 2253960), (10, 2028564), (12, 1690470), (15, 1352376), (18, 1126980), (20, 1014282), (24, 845235), (27, 751320), (30, 676188), (36, 563490), (40, 507141), (45, 450792), (54, 375660), (60, 338094), (72, 281745), (81, 250440), (90, 225396), (108, 187830), (120, 169047), (135, 150264), (162, 125220), (180, 112698), (216, 93915), (243, 83480), (270, 75132), (324, 62610), (360, 56349), (405, 50088), (486, 41740), (540, 37566), (648, 31305), (810, 25044), (972, 20870), (1080, 18783), (1215, 16696), (1620, 12522), (1944, 10435), (2087, 9720), (2430, 8348), (3240, 6261), (4174, 4860)]