19700100

素因数分解:

$2^2\times 3^2\times 5^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1$

素因数の和:139

約数の個数: 216

約数和(自身を含む): 73120320

約数和(自身を除く): 53420220

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 25, 28, 30, 35, 36, 42, 45, 50, 53, 59, 60, 63, 70, 75, 84, 90, 100, 105, 106, 118, 126, 140, 150, 159, 175, 177, 180, 210, 212, 225, 236, 252, 265, 295, 300, 315, 318, 350, 354, 371, 413, 420, 450, 477, 525, 530, 531, 590, 630, 636, 700, 708, 742, 795, 826, 885, 900, 954, 1050, 1060, 1062, 1113, 1180, 1239, 1260, 1325, 1475, 1484, 1575, 1590, 1652, 1770, 1855, 1908, 2065, 2100, 2124, 2226, 2385, 2478, 2650, 2655, 2950, 3127, 3150, 3180, 3339, 3540, 3710, 3717, 3975, 4130, 4425, 4452, 4770, 4956, 5300, 5310, 5565, 5900, 6195, 6254, 6300, 6678, 7420, 7434, 7950, 8260, 8850, 9275, 9381, 9540, 10325, 10620, 11130, 11925, 12390, 12508, 13275, 13356, 14868, 15635, 15900, 16695, 17700, 18550, 18585, 18762, 20650, 21889, 22260, 23850, 24780, 26550, 27825, 28143, 30975, 31270, 33390, 37100, 37170, 37524, 41300, 43778, 46905, 47700, 53100, 55650, 56286, 61950, 62540, 65667, 66780, 74340, 78175, 83475, 87556, 92925, 93810, 109445, 111300, 112572, 123900, 131334, 140715, 156350, 166950, 185850, 187620, 197001, 218890, 234525, 262668, 281430, 312700, 328335, 333900, 371700, 394002, 437780, 469050, 547225, 562860, 656670, 703575, 788004, 938100, 985005, 1094450, 1313340, 1407150, 1641675, 1970010, 2188900, 2814300, 3283350, 3940020, 4925025, 6566700, 9850050, 19700100]

約数ペア:

[(1, 19700100), (2, 9850050), (3, 6566700), (4, 4925025), (5, 3940020), (6, 3283350), (7, 2814300), (9, 2188900), (10, 1970010), (12, 1641675), (14, 1407150), (15, 1313340), (18, 1094450), (20, 985005), (21, 938100), (25, 788004), (28, 703575), (30, 656670), (35, 562860), (36, 547225), (42, 469050), (45, 437780), (50, 394002), (53, 371700), (59, 333900), (60, 328335), (63, 312700), (70, 281430), (75, 262668), (84, 234525), (90, 218890), (100, 197001), (105, 187620), (106, 185850), (118, 166950), (126, 156350), (140, 140715), (150, 131334), (159, 123900), (175, 112572), (177, 111300), (180, 109445), (210, 93810), (212, 92925), (225, 87556), (236, 83475), (252, 78175), (265, 74340), (295, 66780), (300, 65667), (315, 62540), (318, 61950), (350, 56286), (354, 55650), (371, 53100), (413, 47700), (420, 46905), (450, 43778), (477, 41300), (525, 37524), (530, 37170), (531, 37100), (590, 33390), (630, 31270), (636, 30975), (700, 28143), (708, 27825), (742, 26550), (795, 24780), (826, 23850), (885, 22260), (900, 21889), (954, 20650), (1050, 18762), (1060, 18585), (1062, 18550), (1113, 17700), (1180, 16695), (1239, 15900), (1260, 15635), (1325, 14868), (1475, 13356), (1484, 13275), (1575, 12508), (1590, 12390), (1652, 11925), (1770, 11130), (1855, 10620), (1908, 10325), (2065, 9540), (2100, 9381), (2124, 9275), (2226, 8850), (2385, 8260), (2478, 7950), (2650, 7434), (2655, 7420), (2950, 6678), (3127, 6300), (3150, 6254), (3180, 6195), (3339, 5900), (3540, 5565), (3710, 5310), (3717, 5300), (3975, 4956), (4130, 4770), (4425, 4452)]