20945790

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1361}}^1$

素因数の和:1399

約数の個数: 80

約数和(自身を含む): 59328720

約数和(自身を除く): 38382930

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 27, 30, 38, 45, 54, 57, 81, 90, 95, 114, 135, 162, 171, 190, 270, 285, 342, 405, 513, 570, 810, 855, 1026, 1361, 1539, 1710, 2565, 2722, 3078, 4083, 5130, 6805, 7695, 8166, 12249, 13610, 15390, 20415, 24498, 25859, 36747, 40830, 51718, 61245, 73494, 77577, 110241, 122490, 129295, 155154, 183735, 220482, 232731, 258590, 367470, 387885, 465462, 551205, 698193, 775770, 1102410, 1163655, 1396386, 2094579, 2327310, 3490965, 4189158, 6981930, 10472895, 20945790]

約数ペア:

[(1, 20945790), (2, 10472895), (3, 6981930), (5, 4189158), (6, 3490965), (9, 2327310), (10, 2094579), (15, 1396386), (18, 1163655), (19, 1102410), (27, 775770), (30, 698193), (38, 551205), (45, 465462), (54, 387885), (57, 367470), (81, 258590), (90, 232731), (95, 220482), (114, 183735), (135, 155154), (162, 129295), (171, 122490), (190, 110241), (270, 77577), (285, 73494), (342, 61245), (405, 51718), (513, 40830), (570, 36747), (810, 25859), (855, 24498), (1026, 20415), (1361, 15390), (1539, 13610), (1710, 12249), (2565, 8166), (2722, 7695), (3078, 6805), (4083, 5130)]