20502900

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1$

素因数の和:159

約数の個数: 216

約数和(自身を含む): 74474400

約数和(自身を除く): 53971500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 19, 20, 22, 25, 30, 33, 36, 38, 44, 45, 50, 55, 57, 60, 66, 75, 76, 90, 95, 99, 100, 109, 110, 114, 132, 150, 165, 171, 180, 190, 198, 209, 218, 220, 225, 228, 275, 285, 300, 327, 330, 342, 380, 396, 418, 436, 450, 475, 495, 545, 550, 570, 627, 654, 660, 684, 825, 836, 855, 900, 950, 981, 990, 1045, 1090, 1100, 1140, 1199, 1254, 1308, 1425, 1635, 1650, 1710, 1881, 1900, 1962, 1980, 2071, 2090, 2180, 2398, 2475, 2508, 2725, 2850, 3135, 3270, 3300, 3420, 3597, 3762, 3924, 4142, 4180, 4275, 4796, 4905, 4950, 5225, 5450, 5700, 5995, 6213, 6270, 6540, 7194, 7524, 8175, 8284, 8550, 9405, 9810, 9900, 10355, 10450, 10791, 10900, 11990, 12426, 12540, 14388, 15675, 16350, 17100, 17985, 18639, 18810, 19620, 20710, 20900, 21582, 22781, 23980, 24525, 24852, 29975, 31065, 31350, 32700, 35970, 37278, 37620, 41420, 43164, 45562, 47025, 49050, 51775, 53955, 59950, 62130, 62700, 68343, 71940, 74556, 89925, 91124, 93195, 94050, 98100, 103550, 107910, 113905, 119900, 124260, 136686, 155325, 179850, 186390, 188100, 205029, 207100, 215820, 227810, 269775, 273372, 310650, 341715, 359700, 372780, 410058, 455620, 465975, 539550, 569525, 621300, 683430, 820116, 931950, 1025145, 1079100, 1139050, 1366860, 1708575, 1863900, 2050290, 2278100, 3417150, 4100580, 5125725, 6834300, 10251450, 20502900]

約数ペア:

[(1, 20502900), (2, 10251450), (3, 6834300), (4, 5125725), (5, 4100580), (6, 3417150), (9, 2278100), (10, 2050290), (11, 1863900), (12, 1708575), (15, 1366860), (18, 1139050), (19, 1079100), (20, 1025145), (22, 931950), (25, 820116), (30, 683430), (33, 621300), (36, 569525), (38, 539550), (44, 465975), (45, 455620), (50, 410058), (55, 372780), (57, 359700), (60, 341715), (66, 310650), (75, 273372), (76, 269775), (90, 227810), (95, 215820), (99, 207100), (100, 205029), (109, 188100), (110, 186390), (114, 179850), (132, 155325), (150, 136686), (165, 124260), (171, 119900), (180, 113905), (190, 107910), (198, 103550), (209, 98100), (218, 94050), (220, 93195), (225, 91124), (228, 89925), (275, 74556), (285, 71940), (300, 68343), (327, 62700), (330, 62130), (342, 59950), (380, 53955), (396, 51775), (418, 49050), (436, 47025), (450, 45562), (475, 43164), (495, 41420), (545, 37620), (550, 37278), (570, 35970), (627, 32700), (654, 31350), (660, 31065), (684, 29975), (825, 24852), (836, 24525), (855, 23980), (900, 22781), (950, 21582), (981, 20900), (990, 20710), (1045, 19620), (1090, 18810), (1100, 18639), (1140, 17985), (1199, 17100), (1254, 16350), (1308, 15675), (1425, 14388), (1635, 12540), (1650, 12426), (1710, 11990), (1881, 10900), (1900, 10791), (1962, 10450), (1980, 10355), (2071, 9900), (2090, 9810), (2180, 9405), (2398, 8550), (2475, 8284), (2508, 8175), (2725, 7524), (2850, 7194), (3135, 6540), (3270, 6270), (3300, 6213), (3420, 5995), (3597, 5700), (3762, 5450), (3924, 5225), (4142, 4950), (4180, 4905), (4275, 4796)]