19421800

素因数分解:

$2^3\times 5^2\times {\mathrm{19}}^2\times {\mathrm{269}}^1$

素因数の和:323

約数の個数: 72

約数和(自身を含む): 47834550

約数和(自身を除く): 28412750

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 152, 190, 200, 269, 361, 380, 475, 538, 722, 760, 950, 1076, 1345, 1444, 1805, 1900, 2152, 2690, 2888, 3610, 3800, 5111, 5380, 6725, 7220, 9025, 10222, 10760, 13450, 14440, 18050, 20444, 25555, 26900, 36100, 40888, 51110, 53800, 72200, 97109, 102220, 127775, 194218, 204440, 255550, 388436, 485545, 511100, 776872, 971090, 1022200, 1942180, 2427725, 3884360, 4855450, 9710900, 19421800]

約数ペア:

[(1, 19421800), (2, 9710900), (4, 4855450), (5, 3884360), (8, 2427725), (10, 1942180), (19, 1022200), (20, 971090), (25, 776872), (38, 511100), (40, 485545), (50, 388436), (76, 255550), (95, 204440), (100, 194218), (152, 127775), (190, 102220), (200, 97109), (269, 72200), (361, 53800), (380, 51110), (475, 40888), (538, 36100), (722, 26900), (760, 25555), (950, 20444), (1076, 18050), (1345, 14440), (1444, 13450), (1805, 10760), (1900, 10222), (2152, 9025), (2690, 7220), (2888, 6725), (3610, 5380), (3800, 5111)]