388913840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1\times {\mathrm{149}}^1$

素因数の和:307

約数の個数: 160

約数和(自身を含む): 1071360000

約数和(自身を除く): 682446160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 59, 70, 79, 80, 112, 118, 140, 149, 158, 236, 280, 295, 298, 316, 395, 413, 472, 553, 560, 590, 596, 632, 745, 790, 826, 944, 1043, 1106, 1180, 1192, 1264, 1490, 1580, 1652, 2065, 2086, 2212, 2360, 2384, 2765, 2980, 3160, 3304, 4130, 4172, 4424, 4661, 4720, 5215, 5530, 5960, 6320, 6608, 8260, 8344, 8791, 8848, 9322, 10430, 11060, 11771, 11920, 16520, 16688, 17582, 18644, 20860, 22120, 23305, 23542, 32627, 33040, 35164, 37288, 41720, 43955, 44240, 46610, 47084, 58855, 61537, 65254, 70328, 74576, 82397, 83440, 87910, 93220, 94168, 117710, 123074, 130508, 140656, 163135, 164794, 175820, 186440, 188336, 235420, 246148, 261016, 307685, 326270, 329588, 351640, 372880, 411985, 470840, 492296, 522032, 615370, 652540, 659176, 694489, 703280, 823970, 941680, 984592, 1230740, 1305080, 1318352, 1388978, 1647940, 2461480, 2610160, 2777956, 3295880, 3472445, 4861423, 4922960, 5555912, 6591760, 6944890, 9722846, 11111824, 13889780, 19445692, 24307115, 27779560, 38891384, 48614230, 55559120, 77782768, 97228460, 194456920, 388913840]

約数ペア:

[(1, 388913840), (2, 194456920), (4, 97228460), (5, 77782768), (7, 55559120), (8, 48614230), (10, 38891384), (14, 27779560), (16, 24307115), (20, 19445692), (28, 13889780), (35, 11111824), (40, 9722846), (56, 6944890), (59, 6591760), (70, 5555912), (79, 4922960), (80, 4861423), (112, 3472445), (118, 3295880), (140, 2777956), (149, 2610160), (158, 2461480), (236, 1647940), (280, 1388978), (295, 1318352), (298, 1305080), (316, 1230740), (395, 984592), (413, 941680), (472, 823970), (553, 703280), (560, 694489), (590, 659176), (596, 652540), (632, 615370), (745, 522032), (790, 492296), (826, 470840), (944, 411985), (1043, 372880), (1106, 351640), (1180, 329588), (1192, 326270), (1264, 307685), (1490, 261016), (1580, 246148), (1652, 235420), (2065, 188336), (2086, 186440), (2212, 175820), (2360, 164794), (2384, 163135), (2765, 140656), (2980, 130508), (3160, 123074), (3304, 117710), (4130, 94168), (4172, 93220), (4424, 87910), (4661, 83440), (4720, 82397), (5215, 74576), (5530, 70328), (5960, 65254), (6320, 61537), (6608, 58855), (8260, 47084), (8344, 46610), (8791, 44240), (8848, 43955), (9322, 41720), (10430, 37288), (11060, 35164), (11771, 33040), (11920, 32627), (16520, 23542), (16688, 23305), (17582, 22120), (18644, 20860)]