28319500

素因数分解:

$2^2\times 5^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{271}}^1$

素因数の和:320

約数の個数: 96

約数和(自身を含む): 71285760

約数和(自身を除く): 42966260

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 25, 38, 44, 50, 55, 76, 95, 100, 110, 125, 190, 209, 220, 250, 271, 275, 380, 418, 475, 500, 542, 550, 836, 950, 1045, 1084, 1100, 1355, 1375, 1900, 2090, 2375, 2710, 2750, 2981, 4180, 4750, 5149, 5225, 5420, 5500, 5962, 6775, 9500, 10298, 10450, 11924, 13550, 14905, 20596, 20900, 25745, 26125, 27100, 29810, 33875, 51490, 52250, 56639, 59620, 67750, 74525, 102980, 104500, 113278, 128725, 135500, 149050, 226556, 257450, 283195, 298100, 372625, 514900, 566390, 643625, 745250, 1132780, 1287250, 1415975, 1490500, 2574500, 2831950, 5663900, 7079875, 14159750, 28319500]

約数ペア:

[(1, 28319500), (2, 14159750), (4, 7079875), (5, 5663900), (10, 2831950), (11, 2574500), (19, 1490500), (20, 1415975), (22, 1287250), (25, 1132780), (38, 745250), (44, 643625), (50, 566390), (55, 514900), (76, 372625), (95, 298100), (100, 283195), (110, 257450), (125, 226556), (190, 149050), (209, 135500), (220, 128725), (250, 113278), (271, 104500), (275, 102980), (380, 74525), (418, 67750), (475, 59620), (500, 56639), (542, 52250), (550, 51490), (836, 33875), (950, 29810), (1045, 27100), (1084, 26125), (1100, 25745), (1355, 20900), (1375, 20596), (1900, 14905), (2090, 13550), (2375, 11924), (2710, 10450), (2750, 10298), (2981, 9500), (4180, 6775), (4750, 5962), (5149, 5500), (5225, 5420)]