64281560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{281}}^1$

素因数の和:361

約数の個数: 128

約数和(自身を含む): 178675200

約数和(自身を除く): 114393640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 43, 56, 70, 76, 86, 95, 133, 140, 152, 172, 190, 215, 266, 280, 281, 301, 344, 380, 430, 532, 562, 602, 665, 760, 817, 860, 1064, 1124, 1204, 1330, 1405, 1505, 1634, 1720, 1967, 2248, 2408, 2660, 2810, 3010, 3268, 3934, 4085, 5320, 5339, 5620, 5719, 6020, 6536, 7868, 8170, 9835, 10678, 11240, 11438, 12040, 12083, 15736, 16340, 19670, 21356, 22876, 24166, 26695, 28595, 32680, 37373, 39340, 42712, 45752, 48332, 53390, 57190, 60415, 74746, 78680, 84581, 96664, 106780, 114380, 120830, 149492, 169162, 186865, 213560, 228760, 229577, 241660, 298984, 338324, 373730, 422905, 459154, 483320, 676648, 747460, 845810, 918308, 1147885, 1494920, 1607039, 1691620, 1836616, 2295770, 3214078, 3383240, 4591540, 6428156, 8035195, 9183080, 12856312, 16070390, 32140780, 64281560]

約数ペア:

[(1, 64281560), (2, 32140780), (4, 16070390), (5, 12856312), (7, 9183080), (8, 8035195), (10, 6428156), (14, 4591540), (19, 3383240), (20, 3214078), (28, 2295770), (35, 1836616), (38, 1691620), (40, 1607039), (43, 1494920), (56, 1147885), (70, 918308), (76, 845810), (86, 747460), (95, 676648), (133, 483320), (140, 459154), (152, 422905), (172, 373730), (190, 338324), (215, 298984), (266, 241660), (280, 229577), (281, 228760), (301, 213560), (344, 186865), (380, 169162), (430, 149492), (532, 120830), (562, 114380), (602, 106780), (665, 96664), (760, 84581), (817, 78680), (860, 74746), (1064, 60415), (1124, 57190), (1204, 53390), (1330, 48332), (1405, 45752), (1505, 42712), (1634, 39340), (1720, 37373), (1967, 32680), (2248, 28595), (2408, 26695), (2660, 24166), (2810, 22876), (3010, 21356), (3268, 19670), (3934, 16340), (4085, 15736), (5320, 12083), (5339, 12040), (5620, 11438), (5719, 11240), (6020, 10678), (6536, 9835), (7868, 8170)]