81614500

素因数分解:

$2^2\times 5^3\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1$

素因数の和:131

約数の個数: 144

約数和(自身を含む): 209139840

約数和(自身を除く): 127525340

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 25, 38, 44, 50, 55, 71, 76, 95, 100, 110, 121, 125, 142, 190, 209, 220, 242, 250, 275, 284, 355, 380, 418, 475, 484, 500, 550, 605, 710, 781, 836, 950, 1045, 1100, 1210, 1349, 1375, 1420, 1562, 1775, 1900, 2090, 2299, 2375, 2420, 2698, 2750, 3025, 3124, 3550, 3905, 4180, 4598, 4750, 5225, 5396, 5500, 6050, 6745, 7100, 7810, 8591, 8875, 9196, 9500, 10450, 11495, 12100, 13490, 14839, 15125, 15620, 17182, 17750, 19525, 20900, 22990, 26125, 26980, 29678, 30250, 33725, 34364, 35500, 39050, 42955, 45980, 52250, 57475, 59356, 60500, 67450, 74195, 78100, 85910, 97625, 104500, 114950, 134900, 148390, 163229, 168625, 171820, 195250, 214775, 229900, 287375, 296780, 326458, 337250, 370975, 390500, 429550, 574750, 652916, 674500, 741950, 816145, 859100, 1073875, 1149500, 1483900, 1632290, 1854875, 2147750, 3264580, 3709750, 4080725, 4295500, 7419500, 8161450, 16322900, 20403625, 40807250, 81614500]

約数ペア:

[(1, 81614500), (2, 40807250), (4, 20403625), (5, 16322900), (10, 8161450), (11, 7419500), (19, 4295500), (20, 4080725), (22, 3709750), (25, 3264580), (38, 2147750), (44, 1854875), (50, 1632290), (55, 1483900), (71, 1149500), (76, 1073875), (95, 859100), (100, 816145), (110, 741950), (121, 674500), (125, 652916), (142, 574750), (190, 429550), (209, 390500), (220, 370975), (242, 337250), (250, 326458), (275, 296780), (284, 287375), (355, 229900), (380, 214775), (418, 195250), (475, 171820), (484, 168625), (500, 163229), (550, 148390), (605, 134900), (710, 114950), (781, 104500), (836, 97625), (950, 85910), (1045, 78100), (1100, 74195), (1210, 67450), (1349, 60500), (1375, 59356), (1420, 57475), (1562, 52250), (1775, 45980), (1900, 42955), (2090, 39050), (2299, 35500), (2375, 34364), (2420, 33725), (2698, 30250), (2750, 29678), (3025, 26980), (3124, 26125), (3550, 22990), (3905, 20900), (4180, 19525), (4598, 17750), (4750, 17182), (5225, 15620), (5396, 15125), (5500, 14839), (6050, 13490), (6745, 12100), (7100, 11495), (7810, 10450), (8591, 9500), (8875, 9196)]