19490320

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{271}}^1$

素因数の和:344

約数の個数: 80

約数和(自身を含む): 48568320

約数和(自身を除く): 29078000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 31, 40, 58, 62, 80, 116, 124, 145, 155, 232, 248, 271, 290, 310, 464, 496, 542, 580, 620, 899, 1084, 1160, 1240, 1355, 1798, 2168, 2320, 2480, 2710, 3596, 4336, 4495, 5420, 7192, 7859, 8401, 8990, 10840, 14384, 15718, 16802, 17980, 21680, 31436, 33604, 35960, 39295, 42005, 62872, 67208, 71920, 78590, 84010, 125744, 134416, 157180, 168020, 243629, 314360, 336040, 487258, 628720, 672080, 974516, 1218145, 1949032, 2436290, 3898064, 4872580, 9745160, 19490320]

約数ペア:

[(1, 19490320), (2, 9745160), (4, 4872580), (5, 3898064), (8, 2436290), (10, 1949032), (16, 1218145), (20, 974516), (29, 672080), (31, 628720), (40, 487258), (58, 336040), (62, 314360), (80, 243629), (116, 168020), (124, 157180), (145, 134416), (155, 125744), (232, 84010), (248, 78590), (271, 71920), (290, 67208), (310, 62872), (464, 42005), (496, 39295), (542, 35960), (580, 33604), (620, 31436), (899, 21680), (1084, 17980), (1160, 16802), (1240, 15718), (1355, 14384), (1798, 10840), (2168, 8990), (2320, 8401), (2480, 7859), (2710, 7192), (3596, 5420), (4336, 4495)]