19891840060

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2311}}^1\times {\mathrm{13883}}^1$

素因数の和:16234

約数の個数: 48

約数和(自身を含む): 43142141952

約数和(自身を除く): 23250301892

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 2311, 4622, 9244, 11555, 13883, 23110, 27766, 46220, 55532, 69415, 71641, 138830, 143282, 277660, 286564, 358205, 430373, 716410, 860746, 1432820, 1721492, 2151865, 4303730, 8607460, 32083613, 64167226, 128334452, 160418065, 320836130, 641672260, 994592003, 1989184006, 3978368012, 4972960015, 9945920030, 19891840060]

約数ペア:

[(1, 19891840060), (2, 9945920030), (4, 4972960015), (5, 3978368012), (10, 1989184006), (20, 994592003), (31, 641672260), (62, 320836130), (124, 160418065), (155, 128334452), (310, 64167226), (620, 32083613), (2311, 8607460), (4622, 4303730), (9244, 2151865), (11555, 1721492), (13883, 1432820), (23110, 860746), (27766, 716410), (46220, 430373), (55532, 358205), (69415, 286564), (71641, 277660), (138830, 143282)]