408516340

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1087}}^1$

素因数の和:1181

約数の個数: 96

約数和(自身を含む): 965099520

約数和(自身を除く): 556583180

約数列:

[1, 2, 4, 5, 10, 19, 20, 23, 38, 43, 46, 76, 86, 92, 95, 115, 172, 190, 215, 230, 380, 430, 437, 460, 817, 860, 874, 989, 1087, 1634, 1748, 1978, 2174, 2185, 3268, 3956, 4085, 4348, 4370, 4945, 5435, 8170, 8740, 9890, 10870, 16340, 18791, 19780, 20653, 21740, 25001, 37582, 41306, 46741, 50002, 75164, 82612, 93482, 93955, 100004, 103265, 125005, 186964, 187910, 206530, 233705, 250010, 375820, 413060, 467410, 475019, 500020, 888079, 934820, 950038, 1075043, 1776158, 1900076, 2150086, 2375095, 3552316, 4300172, 4440395, 4750190, 5375215, 8880790, 9500380, 10750430, 17761580, 20425817, 21500860, 40851634, 81703268, 102129085, 204258170, 408516340]

約数ペア:

[(1, 408516340), (2, 204258170), (4, 102129085), (5, 81703268), (10, 40851634), (19, 21500860), (20, 20425817), (23, 17761580), (38, 10750430), (43, 9500380), (46, 8880790), (76, 5375215), (86, 4750190), (92, 4440395), (95, 4300172), (115, 3552316), (172, 2375095), (190, 2150086), (215, 1900076), (230, 1776158), (380, 1075043), (430, 950038), (437, 934820), (460, 888079), (817, 500020), (860, 475019), (874, 467410), (989, 413060), (1087, 375820), (1634, 250010), (1748, 233705), (1978, 206530), (2174, 187910), (2185, 186964), (3268, 125005), (3956, 103265), (4085, 100004), (4348, 93955), (4370, 93482), (4945, 82612), (5435, 75164), (8170, 50002), (8740, 46741), (9890, 41306), (10870, 37582), (16340, 25001), (18791, 21740), (19780, 20653)]