205511900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{8123}}^1$

素因数の和:8171

約数の個数: 72

約数和(自身を含む): 507717504

約数和(自身を除く): 302205604

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 25, 44, 46, 50, 55, 92, 100, 110, 115, 220, 230, 253, 275, 460, 506, 550, 575, 1012, 1100, 1150, 1265, 2300, 2530, 5060, 6325, 8123, 12650, 16246, 25300, 32492, 40615, 81230, 89353, 162460, 178706, 186829, 203075, 357412, 373658, 406150, 446765, 747316, 812300, 893530, 934145, 1787060, 1868290, 2055119, 2233825, 3736580, 4110238, 4467650, 4670725, 8220476, 8935300, 9341450, 10275595, 18682900, 20551190, 41102380, 51377975, 102755950, 205511900]

約数ペア:

[(1, 205511900), (2, 102755950), (4, 51377975), (5, 41102380), (10, 20551190), (11, 18682900), (20, 10275595), (22, 9341450), (23, 8935300), (25, 8220476), (44, 4670725), (46, 4467650), (50, 4110238), (55, 3736580), (92, 2233825), (100, 2055119), (110, 1868290), (115, 1787060), (220, 934145), (230, 893530), (253, 812300), (275, 747316), (460, 446765), (506, 406150), (550, 373658), (575, 357412), (1012, 203075), (1100, 186829), (1150, 178706), (1265, 162460), (2300, 89353), (2530, 81230), (5060, 40615), (6325, 32492), (8123, 25300), (12650, 16246)]