202020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1$

素因数の和:69

約数の個数: 96

約数和(自身を含む): 715008

約数和(自身を除く): 512988

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 37, 39, 42, 52, 60, 65, 70, 74, 78, 84, 91, 105, 111, 130, 140, 148, 156, 182, 185, 195, 210, 222, 259, 260, 273, 364, 370, 390, 420, 444, 455, 481, 518, 546, 555, 740, 777, 780, 910, 962, 1036, 1092, 1110, 1295, 1365, 1443, 1554, 1820, 1924, 2220, 2405, 2590, 2730, 2886, 3108, 3367, 3885, 4810, 5180, 5460, 5772, 6734, 7215, 7770, 9620, 10101, 13468, 14430, 15540, 16835, 20202, 28860, 33670, 40404, 50505, 67340, 101010, 202020]

約数ペア:

[(1, 202020), (2, 101010), (3, 67340), (4, 50505), (5, 40404), (6, 33670), (7, 28860), (10, 20202), (12, 16835), (13, 15540), (14, 14430), (15, 13468), (20, 10101), (21, 9620), (26, 7770), (28, 7215), (30, 6734), (35, 5772), (37, 5460), (39, 5180), (42, 4810), (52, 3885), (60, 3367), (65, 3108), (70, 2886), (74, 2730), (78, 2590), (84, 2405), (91, 2220), (105, 1924), (111, 1820), (130, 1554), (140, 1443), (148, 1365), (156, 1295), (182, 1110), (185, 1092), (195, 1036), (210, 962), (222, 910), (259, 780), (260, 777), (273, 740), (364, 555), (370, 546), (390, 518), (420, 481), (444, 455)]