128241640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{83}}^1\times {\mathrm{107}}^1$

素因数の和:239

約数の個数: 96

約数和(自身を含む): 311078880

約数和(自身を除く): 182837240

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 83, 95, 107, 152, 166, 190, 214, 332, 361, 380, 415, 428, 535, 664, 722, 760, 830, 856, 1070, 1444, 1577, 1660, 1805, 2033, 2140, 2888, 3154, 3320, 3610, 4066, 4280, 6308, 7220, 7885, 8132, 8881, 10165, 12616, 14440, 15770, 16264, 17762, 20330, 29963, 31540, 35524, 38627, 40660, 44405, 59926, 63080, 71048, 77254, 81320, 88810, 119852, 149815, 154508, 168739, 177620, 193135, 239704, 299630, 309016, 337478, 355240, 386270, 599260, 674956, 772540, 843695, 1198520, 1349912, 1545080, 1687390, 3206041, 3374780, 6412082, 6749560, 12824164, 16030205, 25648328, 32060410, 64120820, 128241640]

約数ペア:

[(1, 128241640), (2, 64120820), (4, 32060410), (5, 25648328), (8, 16030205), (10, 12824164), (19, 6749560), (20, 6412082), (38, 3374780), (40, 3206041), (76, 1687390), (83, 1545080), (95, 1349912), (107, 1198520), (152, 843695), (166, 772540), (190, 674956), (214, 599260), (332, 386270), (361, 355240), (380, 337478), (415, 309016), (428, 299630), (535, 239704), (664, 193135), (722, 177620), (760, 168739), (830, 154508), (856, 149815), (1070, 119852), (1444, 88810), (1577, 81320), (1660, 77254), (1805, 71048), (2033, 63080), (2140, 59926), (2888, 44405), (3154, 40660), (3320, 38627), (3610, 35524), (4066, 31540), (4280, 29963), (6308, 20330), (7220, 17762), (7885, 16264), (8132, 15770), (8881, 14440), (10165, 12616)]