7455420

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:180

約数の個数: 144

約数和(自身を含む): 26539968

約数和(自身を除く): 19084548

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 61, 63, 70, 84, 90, 97, 105, 122, 126, 140, 180, 183, 194, 210, 244, 252, 291, 305, 315, 366, 388, 420, 427, 485, 549, 582, 610, 630, 679, 732, 854, 873, 915, 970, 1098, 1164, 1220, 1260, 1281, 1358, 1455, 1708, 1746, 1830, 1940, 2037, 2135, 2196, 2562, 2716, 2745, 2910, 3395, 3492, 3660, 3843, 4074, 4270, 4365, 5124, 5490, 5820, 5917, 6111, 6405, 6790, 7686, 8148, 8540, 8730, 10185, 10980, 11834, 12222, 12810, 13580, 15372, 17460, 17751, 19215, 20370, 23668, 24444, 25620, 29585, 30555, 35502, 38430, 40740, 41419, 53253, 59170, 61110, 71004, 76860, 82838, 88755, 106506, 118340, 122220, 124257, 165676, 177510, 207095, 213012, 248514, 266265, 355020, 372771, 414190, 497028, 532530, 621285, 745542, 828380, 1065060, 1242570, 1491084, 1863855, 2485140, 3727710, 7455420]

約数ペア:

[(1, 7455420), (2, 3727710), (3, 2485140), (4, 1863855), (5, 1491084), (6, 1242570), (7, 1065060), (9, 828380), (10, 745542), (12, 621285), (14, 532530), (15, 497028), (18, 414190), (20, 372771), (21, 355020), (28, 266265), (30, 248514), (35, 213012), (36, 207095), (42, 177510), (45, 165676), (60, 124257), (61, 122220), (63, 118340), (70, 106506), (84, 88755), (90, 82838), (97, 76860), (105, 71004), (122, 61110), (126, 59170), (140, 53253), (180, 41419), (183, 40740), (194, 38430), (210, 35502), (244, 30555), (252, 29585), (291, 25620), (305, 24444), (315, 23668), (366, 20370), (388, 19215), (420, 17751), (427, 17460), (485, 15372), (549, 13580), (582, 12810), (610, 12222), (630, 11834), (679, 10980), (732, 10185), (854, 8730), (873, 8540), (915, 8148), (970, 7686), (1098, 6790), (1164, 6405), (1220, 6111), (1260, 5917), (1281, 5820), (1358, 5490), (1455, 5124), (1708, 4365), (1746, 4270), (1830, 4074), (1940, 3843), (2037, 3660), (2135, 3492), (2196, 3395), (2562, 2910), (2716, 2745)]