19883500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1$

素因数の和:81

約数の個数: 192

約数和(自身を含む): 58705920

約数和(自身を除く): 38822420

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 19, 20, 23, 25, 26, 28, 35, 38, 46, 50, 52, 65, 70, 76, 91, 92, 95, 100, 115, 125, 130, 133, 140, 161, 175, 182, 190, 230, 247, 250, 260, 266, 299, 322, 325, 350, 364, 380, 437, 455, 460, 475, 494, 500, 532, 575, 598, 644, 650, 665, 700, 805, 874, 875, 910, 950, 988, 1150, 1196, 1235, 1300, 1330, 1495, 1610, 1625, 1729, 1748, 1750, 1820, 1900, 2093, 2185, 2275, 2300, 2375, 2470, 2660, 2875, 2990, 3059, 3220, 3250, 3325, 3458, 3500, 4025, 4186, 4370, 4550, 4750, 4940, 5681, 5750, 5980, 6118, 6175, 6500, 6650, 6916, 7475, 8050, 8372, 8645, 8740, 9100, 9500, 10465, 10925, 11362, 11375, 11500, 12236, 12350, 13300, 14950, 15295, 16100, 16625, 17290, 20125, 20930, 21850, 22724, 22750, 24700, 28405, 29900, 30590, 30875, 33250, 34580, 37375, 39767, 40250, 41860, 43225, 43700, 45500, 52325, 54625, 56810, 61180, 61750, 66500, 74750, 76475, 79534, 80500, 86450, 104650, 109250, 113620, 123500, 142025, 149500, 152950, 159068, 172900, 198835, 209300, 216125, 218500, 261625, 284050, 305900, 382375, 397670, 432250, 523250, 568100, 710125, 764750, 795340, 864500, 994175, 1046500, 1420250, 1529500, 1988350, 2840500, 3976700, 4970875, 9941750, 19883500]

約数ペア:

[(1, 19883500), (2, 9941750), (4, 4970875), (5, 3976700), (7, 2840500), (10, 1988350), (13, 1529500), (14, 1420250), (19, 1046500), (20, 994175), (23, 864500), (25, 795340), (26, 764750), (28, 710125), (35, 568100), (38, 523250), (46, 432250), (50, 397670), (52, 382375), (65, 305900), (70, 284050), (76, 261625), (91, 218500), (92, 216125), (95, 209300), (100, 198835), (115, 172900), (125, 159068), (130, 152950), (133, 149500), (140, 142025), (161, 123500), (175, 113620), (182, 109250), (190, 104650), (230, 86450), (247, 80500), (250, 79534), (260, 76475), (266, 74750), (299, 66500), (322, 61750), (325, 61180), (350, 56810), (364, 54625), (380, 52325), (437, 45500), (455, 43700), (460, 43225), (475, 41860), (494, 40250), (500, 39767), (532, 37375), (575, 34580), (598, 33250), (644, 30875), (650, 30590), (665, 29900), (700, 28405), (805, 24700), (874, 22750), (875, 22724), (910, 21850), (950, 20930), (988, 20125), (1150, 17290), (1196, 16625), (1235, 16100), (1300, 15295), (1330, 14950), (1495, 13300), (1610, 12350), (1625, 12236), (1729, 11500), (1748, 11375), (1750, 11362), (1820, 10925), (1900, 10465), (2093, 9500), (2185, 9100), (2275, 8740), (2300, 8645), (2375, 8372), (2470, 8050), (2660, 7475), (2875, 6916), (2990, 6650), (3059, 6500), (3220, 6175), (3250, 6118), (3325, 5980), (3458, 5750), (3500, 5681), (4025, 4940), (4186, 4750), (4370, 4550)]