2019172940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{25183}}^1$

素因数の和:25422

約数の個数: 48

約数和(自身を含む): 4484766720

約数和(自身を除く): 2465593780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 211, 380, 422, 844, 1055, 2110, 4009, 4220, 8018, 16036, 20045, 25183, 40090, 50366, 80180, 100732, 125915, 251830, 478477, 503660, 956954, 1913908, 2392385, 4784770, 5313613, 9569540, 10627226, 21254452, 26568065, 53136130, 100958647, 106272260, 201917294, 403834588, 504793235, 1009586470, 2019172940]

約数ペア:

[(1, 2019172940), (2, 1009586470), (4, 504793235), (5, 403834588), (10, 201917294), (19, 106272260), (20, 100958647), (38, 53136130), (76, 26568065), (95, 21254452), (190, 10627226), (211, 9569540), (380, 5313613), (422, 4784770), (844, 2392385), (1055, 1913908), (2110, 956954), (4009, 503660), (4220, 478477), (8018, 251830), (16036, 125915), (20045, 100732), (25183, 80180), (40090, 50366)]