256238430

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1\times {\mathrm{241}}^1$

素因数の和:402

約数の個数: 128

約数和(自身を含む): 725953536

約数和(自身を除く): 469715106

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 61, 70, 83, 105, 122, 166, 183, 210, 241, 249, 305, 366, 415, 427, 482, 498, 581, 610, 723, 830, 854, 915, 1162, 1205, 1245, 1281, 1446, 1687, 1743, 1830, 2135, 2410, 2490, 2562, 2905, 3374, 3486, 3615, 4270, 5061, 5063, 5810, 6405, 7230, 8435, 8715, 10122, 10126, 12810, 14701, 15189, 16870, 17430, 20003, 25305, 25315, 29402, 30378, 35441, 40006, 44103, 50610, 50630, 60009, 70882, 73505, 75945, 88206, 100015, 102907, 106323, 120018, 140021, 147010, 151890, 177205, 200030, 205814, 212646, 220515, 280042, 300045, 308721, 354410, 420063, 441030, 514535, 531615, 600090, 617442, 700105, 840126, 1029070, 1063230, 1220183, 1400210, 1543605, 2100315, 2440366, 3087210, 3660549, 4200630, 6100915, 7321098, 8541281, 12201830, 17082562, 18302745, 25623843, 36605490, 42706405, 51247686, 85412810, 128119215, 256238430]

約数ペア:

[(1, 256238430), (2, 128119215), (3, 85412810), (5, 51247686), (6, 42706405), (7, 36605490), (10, 25623843), (14, 18302745), (15, 17082562), (21, 12201830), (30, 8541281), (35, 7321098), (42, 6100915), (61, 4200630), (70, 3660549), (83, 3087210), (105, 2440366), (122, 2100315), (166, 1543605), (183, 1400210), (210, 1220183), (241, 1063230), (249, 1029070), (305, 840126), (366, 700105), (415, 617442), (427, 600090), (482, 531615), (498, 514535), (581, 441030), (610, 420063), (723, 354410), (830, 308721), (854, 300045), (915, 280042), (1162, 220515), (1205, 212646), (1245, 205814), (1281, 200030), (1446, 177205), (1687, 151890), (1743, 147010), (1830, 140021), (2135, 120018), (2410, 106323), (2490, 102907), (2562, 100015), (2905, 88206), (3374, 75945), (3486, 73505), (3615, 70882), (4270, 60009), (5061, 50630), (5063, 50610), (5810, 44103), (6405, 40006), (7230, 35441), (8435, 30378), (8715, 29402), (10122, 25315), (10126, 25305), (12810, 20003), (14701, 17430), (15189, 16870)]