19926440

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{167}}^1$

素因数の和:354

約数の個数: 64

約数和(自身を含む): 47779200

約数和(自身を除く): 27852760

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 157, 167, 190, 314, 334, 380, 628, 668, 760, 785, 835, 1256, 1336, 1570, 1670, 2983, 3140, 3173, 3340, 5966, 6280, 6346, 6680, 11932, 12692, 14915, 15865, 23864, 25384, 26219, 29830, 31730, 52438, 59660, 63460, 104876, 119320, 126920, 131095, 209752, 262190, 498161, 524380, 996322, 1048760, 1992644, 2490805, 3985288, 4981610, 9963220, 19926440]

約数ペア:

[(1, 19926440), (2, 9963220), (4, 4981610), (5, 3985288), (8, 2490805), (10, 1992644), (19, 1048760), (20, 996322), (38, 524380), (40, 498161), (76, 262190), (95, 209752), (152, 131095), (157, 126920), (167, 119320), (190, 104876), (314, 63460), (334, 59660), (380, 52438), (628, 31730), (668, 29830), (760, 26219), (785, 25384), (835, 23864), (1256, 15865), (1336, 14915), (1570, 12692), (1670, 11932), (2983, 6680), (3140, 6346), (3173, 6280), (3340, 5966)]