257213820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{2267}}^1$

素因数の和:2371

約数の個数: 96

約数和(自身を含む): 755951616

約数和(自身を除く): 498737796

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 61, 62, 93, 122, 124, 155, 183, 186, 244, 305, 310, 366, 372, 465, 610, 620, 732, 915, 930, 1220, 1830, 1860, 1891, 2267, 3660, 3782, 4534, 5673, 6801, 7564, 9068, 9455, 11335, 11346, 13602, 18910, 22670, 22692, 27204, 28365, 34005, 37820, 45340, 56730, 68010, 70277, 113460, 136020, 138287, 140554, 210831, 276574, 281108, 351385, 414861, 421662, 553148, 691435, 702770, 829722, 843324, 1054155, 1382870, 1405540, 1659444, 2074305, 2108310, 2765740, 4148610, 4216620, 4286897, 8297220, 8573794, 12860691, 17147588, 21434485, 25721382, 42868970, 51442764, 64303455, 85737940, 128606910, 257213820]

約数ペア:

[(1, 257213820), (2, 128606910), (3, 85737940), (4, 64303455), (5, 51442764), (6, 42868970), (10, 25721382), (12, 21434485), (15, 17147588), (20, 12860691), (30, 8573794), (31, 8297220), (60, 4286897), (61, 4216620), (62, 4148610), (93, 2765740), (122, 2108310), (124, 2074305), (155, 1659444), (183, 1405540), (186, 1382870), (244, 1054155), (305, 843324), (310, 829722), (366, 702770), (372, 691435), (465, 553148), (610, 421662), (620, 414861), (732, 351385), (915, 281108), (930, 276574), (1220, 210831), (1830, 140554), (1860, 138287), (1891, 136020), (2267, 113460), (3660, 70277), (3782, 68010), (4534, 56730), (5673, 45340), (6801, 37820), (7564, 34005), (9068, 28365), (9455, 27204), (11335, 22692), (11346, 22670), (13602, 18910)]