15252440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:145

約数の個数: 128

約数和(自身を含む): 42854400

約数和(自身を除く): 27601960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 47, 56, 61, 70, 76, 94, 95, 122, 133, 140, 152, 188, 190, 235, 244, 266, 280, 305, 329, 376, 380, 427, 470, 488, 532, 610, 658, 665, 760, 854, 893, 940, 1064, 1159, 1220, 1316, 1330, 1645, 1708, 1786, 1880, 2135, 2318, 2440, 2632, 2660, 2867, 3290, 3416, 3572, 4270, 4465, 4636, 5320, 5734, 5795, 6251, 6580, 7144, 8113, 8540, 8930, 9272, 11468, 11590, 12502, 13160, 14335, 16226, 17080, 17860, 20069, 22936, 23180, 25004, 28670, 31255, 32452, 35720, 40138, 40565, 46360, 50008, 54473, 57340, 62510, 64904, 80276, 81130, 100345, 108946, 114680, 125020, 160552, 162260, 200690, 217892, 250040, 272365, 324520, 381311, 401380, 435784, 544730, 762622, 802760, 1089460, 1525244, 1906555, 2178920, 3050488, 3813110, 7626220, 15252440]

約数ペア:

[(1, 15252440), (2, 7626220), (4, 3813110), (5, 3050488), (7, 2178920), (8, 1906555), (10, 1525244), (14, 1089460), (19, 802760), (20, 762622), (28, 544730), (35, 435784), (38, 401380), (40, 381311), (47, 324520), (56, 272365), (61, 250040), (70, 217892), (76, 200690), (94, 162260), (95, 160552), (122, 125020), (133, 114680), (140, 108946), (152, 100345), (188, 81130), (190, 80276), (235, 64904), (244, 62510), (266, 57340), (280, 54473), (305, 50008), (329, 46360), (376, 40565), (380, 40138), (427, 35720), (470, 32452), (488, 31255), (532, 28670), (610, 25004), (658, 23180), (665, 22936), (760, 20069), (854, 17860), (893, 17080), (940, 16226), (1064, 14335), (1159, 13160), (1220, 12502), (1316, 11590), (1330, 11468), (1645, 9272), (1708, 8930), (1786, 8540), (1880, 8113), (2135, 7144), (2318, 6580), (2440, 6251), (2632, 5795), (2660, 5734), (2867, 5320), (3290, 4636), (3416, 4465), (3572, 4270)]