4409900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1$

素因数の和:255

約数の個数: 72

約数和(自身を含む): 11040960

約数和(自身を除く): 6631060

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 25, 38, 44, 50, 55, 76, 95, 100, 110, 190, 209, 211, 220, 275, 380, 418, 422, 475, 550, 836, 844, 950, 1045, 1055, 1100, 1900, 2090, 2110, 2321, 4009, 4180, 4220, 4642, 5225, 5275, 8018, 9284, 10450, 10550, 11605, 16036, 20045, 20900, 21100, 23210, 40090, 44099, 46420, 58025, 80180, 88198, 100225, 116050, 176396, 200450, 220495, 232100, 400900, 440990, 881980, 1102475, 2204950, 4409900]

約数ペア:

[(1, 4409900), (2, 2204950), (4, 1102475), (5, 881980), (10, 440990), (11, 400900), (19, 232100), (20, 220495), (22, 200450), (25, 176396), (38, 116050), (44, 100225), (50, 88198), (55, 80180), (76, 58025), (95, 46420), (100, 44099), (110, 40090), (190, 23210), (209, 21100), (211, 20900), (220, 20045), (275, 16036), (380, 11605), (418, 10550), (422, 10450), (475, 9284), (550, 8018), (836, 5275), (844, 5225), (950, 4642), (1045, 4220), (1055, 4180), (1100, 4009), (1900, 2321), (2090, 2110)]