80991900

素因数分解:

$2^2\times 3^6\times 5^2\times {\mathrm{11}}^1\times {\mathrm{101}}^1$

素因数の和:144

約数の個数: 252

約数和(自身を含む): 290309544

約数和(自身を除く): 209317644

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 25, 27, 30, 33, 36, 44, 45, 50, 54, 55, 60, 66, 75, 81, 90, 99, 100, 101, 108, 110, 132, 135, 150, 162, 165, 180, 198, 202, 220, 225, 243, 270, 275, 297, 300, 303, 324, 330, 396, 404, 405, 450, 486, 495, 505, 540, 550, 594, 606, 660, 675, 729, 810, 825, 891, 900, 909, 972, 990, 1010, 1100, 1111, 1188, 1212, 1215, 1350, 1458, 1485, 1515, 1620, 1650, 1782, 1818, 1980, 2020, 2025, 2222, 2430, 2475, 2525, 2673, 2700, 2727, 2916, 2970, 3030, 3300, 3333, 3564, 3636, 3645, 4050, 4444, 4455, 4545, 4860, 4950, 5050, 5346, 5454, 5555, 5940, 6060, 6075, 6666, 7290, 7425, 7575, 8019, 8100, 8181, 8910, 9090, 9900, 9999, 10100, 10692, 10908, 11110, 12150, 13332, 13365, 13635, 14580, 14850, 15150, 16038, 16362, 16665, 17820, 18180, 18225, 19998, 22220, 22275, 22725, 24300, 24543, 26730, 27270, 27775, 29700, 29997, 30300, 32076, 32724, 33330, 36450, 39996, 40095, 40905, 44550, 45450, 49086, 49995, 53460, 54540, 55550, 59994, 66660, 66825, 68175, 72900, 73629, 80190, 81810, 83325, 89100, 89991, 90900, 98172, 99990, 111100, 119988, 122715, 133650, 136350, 147258, 149985, 160380, 163620, 166650, 179982, 199980, 200475, 204525, 245430, 249975, 267300, 269973, 272700, 294516, 299970, 333300, 359964, 368145, 400950, 409050, 449955, 490860, 499950, 539946, 599940, 613575, 736290, 749925, 801900, 809919, 818100, 899910, 999900, 1079892, 1227150, 1349865, 1472580, 1499850, 1619838, 1799820, 1840725, 2249775, 2454300, 2699730, 2999700, 3239676, 3681450, 4049595, 4499550, 5399460, 6749325, 7362900, 8099190, 8999100, 13498650, 16198380, 20247975, 26997300, 40495950, 80991900]

約数ペア:

[(1, 80991900), (2, 40495950), (3, 26997300), (4, 20247975), (5, 16198380), (6, 13498650), (9, 8999100), (10, 8099190), (11, 7362900), (12, 6749325), (15, 5399460), (18, 4499550), (20, 4049595), (22, 3681450), (25, 3239676), (27, 2999700), (30, 2699730), (33, 2454300), (36, 2249775), (44, 1840725), (45, 1799820), (50, 1619838), (54, 1499850), (55, 1472580), (60, 1349865), (66, 1227150), (75, 1079892), (81, 999900), (90, 899910), (99, 818100), (100, 809919), (101, 801900), (108, 749925), (110, 736290), (132, 613575), (135, 599940), (150, 539946), (162, 499950), (165, 490860), (180, 449955), (198, 409050), (202, 400950), (220, 368145), (225, 359964), (243, 333300), (270, 299970), (275, 294516), (297, 272700), (300, 269973), (303, 267300), (324, 249975), (330, 245430), (396, 204525), (404, 200475), (405, 199980), (450, 179982), (486, 166650), (495, 163620), (505, 160380), (540, 149985), (550, 147258), (594, 136350), (606, 133650), (660, 122715), (675, 119988), (729, 111100), (810, 99990), (825, 98172), (891, 90900), (900, 89991), (909, 89100), (972, 83325), (990, 81810), (1010, 80190), (1100, 73629), (1111, 72900), (1188, 68175), (1212, 66825), (1215, 66660), (1350, 59994), (1458, 55550), (1485, 54540), (1515, 53460), (1620, 49995), (1650, 49086), (1782, 45450), (1818, 44550), (1980, 40905), (2020, 40095), (2025, 39996), (2222, 36450), (2430, 33330), (2475, 32724), (2525, 32076), (2673, 30300), (2700, 29997), (2727, 29700), (2916, 27775), (2970, 27270), (3030, 26730), (3300, 24543), (3333, 24300), (3564, 22725), (3636, 22275), (3645, 22220), (4050, 19998), (4444, 18225), (4455, 18180), (4545, 17820), (4860, 16665), (4950, 16362), (5050, 16038), (5346, 15150), (5454, 14850), (5555, 14580), (5940, 13635), (6060, 13365), (6075, 13332), (6666, 12150), (7290, 11110), (7425, 10908), (7575, 10692), (8019, 10100), (8100, 9999), (8181, 9900), (8910, 9090)]