20212681340

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{163}}^1\times {\mathrm{167}}^1\times {\mathrm{271}}^1$

素因数の和:747

約数の個数: 96

約数和(自身を含む): 43436058624

約数和(自身を除く): 23223377284

約数列:

[1, 2, 4, 5, 10, 20, 137, 163, 167, 271, 274, 326, 334, 542, 548, 652, 668, 685, 815, 835, 1084, 1355, 1370, 1630, 1670, 2710, 2740, 3260, 3340, 5420, 22331, 22879, 27221, 37127, 44173, 44662, 45257, 45758, 54442, 74254, 88346, 89324, 90514, 91516, 108884, 111655, 114395, 136105, 148508, 176692, 181028, 185635, 220865, 223310, 226285, 228790, 272210, 371270, 441730, 446620, 452570, 457580, 544420, 742540, 883460, 905140, 3729277, 6051701, 6200209, 7376891, 7458554, 12103402, 12400418, 14753782, 14917108, 18646385, 24206804, 24800836, 29507564, 30258505, 31001045, 36884455, 37292770, 60517010, 62002090, 73768910, 74585540, 121034020, 124004180, 147537820, 1010634067, 2021268134, 4042536268, 5053170335, 10106340670, 20212681340]

約数ペア:

[(1, 20212681340), (2, 10106340670), (4, 5053170335), (5, 4042536268), (10, 2021268134), (20, 1010634067), (137, 147537820), (163, 124004180), (167, 121034020), (271, 74585540), (274, 73768910), (326, 62002090), (334, 60517010), (542, 37292770), (548, 36884455), (652, 31001045), (668, 30258505), (685, 29507564), (815, 24800836), (835, 24206804), (1084, 18646385), (1355, 14917108), (1370, 14753782), (1630, 12400418), (1670, 12103402), (2710, 7458554), (2740, 7376891), (3260, 6200209), (3340, 6051701), (5420, 3729277), (22331, 905140), (22879, 883460), (27221, 742540), (37127, 544420), (44173, 457580), (44662, 452570), (45257, 446620), (45758, 441730), (54442, 371270), (74254, 272210), (88346, 228790), (89324, 226285), (90514, 223310), (91516, 220865), (108884, 185635), (111655, 181028), (114395, 176692), (136105, 148508)]