19947900

素因数分解:

$2^2\times 3^1\times 5^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{59}}^1$

素因数の和:113

約数の個数: 216

約数和(自身を含む): 71245440

約数和(自身を除く): 51297540

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 23, 25, 28, 30, 35, 42, 46, 49, 50, 59, 60, 69, 70, 75, 84, 92, 98, 100, 105, 115, 118, 138, 140, 147, 150, 161, 175, 177, 196, 210, 230, 236, 245, 276, 294, 295, 300, 322, 345, 350, 354, 413, 420, 460, 483, 490, 525, 575, 588, 590, 644, 690, 700, 708, 735, 805, 826, 885, 966, 980, 1050, 1127, 1150, 1180, 1225, 1239, 1357, 1380, 1470, 1475, 1610, 1652, 1725, 1770, 1932, 2065, 2100, 2254, 2300, 2415, 2450, 2478, 2714, 2891, 2940, 2950, 3220, 3381, 3450, 3540, 3675, 4025, 4071, 4130, 4425, 4508, 4830, 4900, 4956, 5428, 5635, 5782, 5900, 6195, 6762, 6785, 6900, 7350, 8050, 8142, 8260, 8673, 8850, 9499, 9660, 10325, 11270, 11564, 12075, 12390, 13524, 13570, 14455, 14700, 16100, 16284, 16905, 17346, 17700, 18998, 20355, 20650, 22540, 24150, 24780, 27140, 28175, 28497, 28910, 30975, 33810, 33925, 34692, 37996, 40710, 41300, 43365, 47495, 48300, 56350, 56994, 57820, 61950, 66493, 67620, 67850, 72275, 81420, 84525, 86730, 94990, 101775, 112700, 113988, 123900, 132986, 135700, 142485, 144550, 169050, 173460, 189980, 199479, 203550, 216825, 237475, 265972, 284970, 289100, 332465, 338100, 398958, 407100, 433650, 474950, 569940, 664930, 712425, 797916, 867300, 949900, 997395, 1329860, 1424850, 1662325, 1994790, 2849700, 3324650, 3989580, 4986975, 6649300, 9973950, 19947900]

約数ペア:

[(1, 19947900), (2, 9973950), (3, 6649300), (4, 4986975), (5, 3989580), (6, 3324650), (7, 2849700), (10, 1994790), (12, 1662325), (14, 1424850), (15, 1329860), (20, 997395), (21, 949900), (23, 867300), (25, 797916), (28, 712425), (30, 664930), (35, 569940), (42, 474950), (46, 433650), (49, 407100), (50, 398958), (59, 338100), (60, 332465), (69, 289100), (70, 284970), (75, 265972), (84, 237475), (92, 216825), (98, 203550), (100, 199479), (105, 189980), (115, 173460), (118, 169050), (138, 144550), (140, 142485), (147, 135700), (150, 132986), (161, 123900), (175, 113988), (177, 112700), (196, 101775), (210, 94990), (230, 86730), (236, 84525), (245, 81420), (276, 72275), (294, 67850), (295, 67620), (300, 66493), (322, 61950), (345, 57820), (350, 56994), (354, 56350), (413, 48300), (420, 47495), (460, 43365), (483, 41300), (490, 40710), (525, 37996), (575, 34692), (588, 33925), (590, 33810), (644, 30975), (690, 28910), (700, 28497), (708, 28175), (735, 27140), (805, 24780), (826, 24150), (885, 22540), (966, 20650), (980, 20355), (1050, 18998), (1127, 17700), (1150, 17346), (1180, 16905), (1225, 16284), (1239, 16100), (1357, 14700), (1380, 14455), (1470, 13570), (1475, 13524), (1610, 12390), (1652, 12075), (1725, 11564), (1770, 11270), (1932, 10325), (2065, 9660), (2100, 9499), (2254, 8850), (2300, 8673), (2415, 8260), (2450, 8142), (2478, 8050), (2714, 7350), (2891, 6900), (2940, 6785), (2950, 6762), (3220, 6195), (3381, 5900), (3450, 5782), (3540, 5635), (3675, 5428), (4025, 4956), (4071, 4900), (4130, 4830), (4425, 4508)]