20384100

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1$

素因数の和:131

約数の個数: 216

約数和(自身を含む): 73120320

約数和(自身を除く): 52736220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 25, 29, 30, 33, 36, 44, 45, 50, 55, 58, 60, 66, 71, 75, 87, 90, 99, 100, 110, 116, 132, 142, 145, 150, 165, 174, 180, 198, 213, 220, 225, 261, 275, 284, 290, 300, 319, 330, 348, 355, 396, 426, 435, 450, 495, 522, 550, 580, 638, 639, 660, 710, 725, 781, 825, 852, 870, 900, 957, 990, 1044, 1065, 1100, 1276, 1278, 1305, 1420, 1450, 1562, 1595, 1650, 1740, 1775, 1914, 1980, 2059, 2130, 2175, 2343, 2475, 2556, 2610, 2871, 2900, 3124, 3190, 3195, 3300, 3550, 3828, 3905, 4118, 4260, 4350, 4686, 4785, 4950, 5220, 5325, 5742, 6177, 6380, 6390, 6525, 7029, 7100, 7810, 7975, 8236, 8700, 9372, 9570, 9900, 10295, 10650, 11484, 11715, 12354, 12780, 13050, 14058, 14355, 15620, 15950, 15975, 18531, 19140, 19525, 20590, 21300, 22649, 23430, 23925, 24708, 26100, 28116, 28710, 30885, 31900, 31950, 35145, 37062, 39050, 41180, 45298, 46860, 47850, 51475, 57420, 58575, 61770, 63900, 67947, 70290, 71775, 74124, 78100, 90596, 92655, 95700, 102950, 113245, 117150, 123540, 135894, 140580, 143550, 154425, 175725, 185310, 203841, 205900, 226490, 234300, 271788, 287100, 308850, 339735, 351450, 370620, 407682, 452980, 463275, 566225, 617700, 679470, 702900, 815364, 926550, 1019205, 1132450, 1358940, 1698675, 1853100, 2038410, 2264900, 3397350, 4076820, 5096025, 6794700, 10192050, 20384100]

約数ペア:

[(1, 20384100), (2, 10192050), (3, 6794700), (4, 5096025), (5, 4076820), (6, 3397350), (9, 2264900), (10, 2038410), (11, 1853100), (12, 1698675), (15, 1358940), (18, 1132450), (20, 1019205), (22, 926550), (25, 815364), (29, 702900), (30, 679470), (33, 617700), (36, 566225), (44, 463275), (45, 452980), (50, 407682), (55, 370620), (58, 351450), (60, 339735), (66, 308850), (71, 287100), (75, 271788), (87, 234300), (90, 226490), (99, 205900), (100, 203841), (110, 185310), (116, 175725), (132, 154425), (142, 143550), (145, 140580), (150, 135894), (165, 123540), (174, 117150), (180, 113245), (198, 102950), (213, 95700), (220, 92655), (225, 90596), (261, 78100), (275, 74124), (284, 71775), (290, 70290), (300, 67947), (319, 63900), (330, 61770), (348, 58575), (355, 57420), (396, 51475), (426, 47850), (435, 46860), (450, 45298), (495, 41180), (522, 39050), (550, 37062), (580, 35145), (638, 31950), (639, 31900), (660, 30885), (710, 28710), (725, 28116), (781, 26100), (825, 24708), (852, 23925), (870, 23430), (900, 22649), (957, 21300), (990, 20590), (1044, 19525), (1065, 19140), (1100, 18531), (1276, 15975), (1278, 15950), (1305, 15620), (1420, 14355), (1450, 14058), (1562, 13050), (1595, 12780), (1650, 12354), (1740, 11715), (1775, 11484), (1914, 10650), (1980, 10295), (2059, 9900), (2130, 9570), (2175, 9372), (2343, 8700), (2475, 8236), (2556, 7975), (2610, 7810), (2871, 7100), (2900, 7029), (3124, 6525), (3190, 6390), (3195, 6380), (3300, 6177), (3550, 5742), (3828, 5325), (3905, 5220), (4118, 4950), (4260, 4785), (4350, 4686)]