404040

素因数分解:

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

素因数の和:71

約数の個数: 128

約数和(自身を含む): 1532160

約数和(自身を除く): 1128120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 26, 28, 30, 35, 37, 39, 40, 42, 52, 56, 60, 65, 70, 74, 78, 84, 91, 104, 105, 111, 120, 130, 140, 148, 156, 168, 182, 185, 195, 210, 222, 259, 260, 273, 280, 296, 312, 364, 370, 390, 420, 444, 455, 481, 518, 520, 546, 555, 728, 740, 777, 780, 840, 888, 910, 962, 1036, 1092, 1110, 1295, 1365, 1443, 1480, 1554, 1560, 1820, 1924, 2072, 2184, 2220, 2405, 2590, 2730, 2886, 3108, 3367, 3640, 3848, 3885, 4440, 4810, 5180, 5460, 5772, 6216, 6734, 7215, 7770, 9620, 10101, 10360, 10920, 11544, 13468, 14430, 15540, 16835, 19240, 20202, 26936, 28860, 31080, 33670, 40404, 50505, 57720, 67340, 80808, 101010, 134680, 202020, 404040]

約数ペア:

[(1, 404040), (2, 202020), (3, 134680), (4, 101010), (5, 80808), (6, 67340), (7, 57720), (8, 50505), (10, 40404), (12, 33670), (13, 31080), (14, 28860), (15, 26936), (20, 20202), (21, 19240), (24, 16835), (26, 15540), (28, 14430), (30, 13468), (35, 11544), (37, 10920), (39, 10360), (40, 10101), (42, 9620), (52, 7770), (56, 7215), (60, 6734), (65, 6216), (70, 5772), (74, 5460), (78, 5180), (84, 4810), (91, 4440), (104, 3885), (105, 3848), (111, 3640), (120, 3367), (130, 3108), (140, 2886), (148, 2730), (156, 2590), (168, 2405), (182, 2220), (185, 2184), (195, 2072), (210, 1924), (222, 1820), (259, 1560), (260, 1554), (273, 1480), (280, 1443), (296, 1365), (312, 1295), (364, 1110), (370, 1092), (390, 1036), (420, 962), (444, 910), (455, 888), (481, 840), (518, 780), (520, 777), (546, 740), (555, 728)]