20895300

素因数分解:

$2^2\times 3^3\times 5^2\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:203

約数の個数: 144

約数和(自身を含む): 68745600

約数和(自身を除く): 47850300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 45, 50, 54, 60, 71, 75, 90, 100, 108, 109, 135, 142, 150, 180, 213, 218, 225, 270, 284, 300, 327, 355, 426, 436, 450, 540, 545, 639, 654, 675, 710, 852, 900, 981, 1065, 1090, 1278, 1308, 1350, 1420, 1635, 1775, 1917, 1962, 2130, 2180, 2556, 2700, 2725, 2943, 3195, 3270, 3550, 3834, 3924, 4260, 4905, 5325, 5450, 5886, 6390, 6540, 7100, 7668, 7739, 8175, 9585, 9810, 10650, 10900, 11772, 12780, 14715, 15478, 15975, 16350, 19170, 19620, 21300, 23217, 24525, 29430, 30956, 31950, 32700, 38340, 38695, 46434, 47925, 49050, 58860, 63900, 69651, 73575, 77390, 92868, 95850, 98100, 116085, 139302, 147150, 154780, 191700, 193475, 208953, 232170, 278604, 294300, 348255, 386950, 417906, 464340, 580425, 696510, 773900, 835812, 1044765, 1160850, 1393020, 1741275, 2089530, 2321700, 3482550, 4179060, 5223825, 6965100, 10447650, 20895300]

約数ペア:

[(1, 20895300), (2, 10447650), (3, 6965100), (4, 5223825), (5, 4179060), (6, 3482550), (9, 2321700), (10, 2089530), (12, 1741275), (15, 1393020), (18, 1160850), (20, 1044765), (25, 835812), (27, 773900), (30, 696510), (36, 580425), (45, 464340), (50, 417906), (54, 386950), (60, 348255), (71, 294300), (75, 278604), (90, 232170), (100, 208953), (108, 193475), (109, 191700), (135, 154780), (142, 147150), (150, 139302), (180, 116085), (213, 98100), (218, 95850), (225, 92868), (270, 77390), (284, 73575), (300, 69651), (327, 63900), (355, 58860), (426, 49050), (436, 47925), (450, 46434), (540, 38695), (545, 38340), (639, 32700), (654, 31950), (675, 30956), (710, 29430), (852, 24525), (900, 23217), (981, 21300), (1065, 19620), (1090, 19170), (1278, 16350), (1308, 15975), (1350, 15478), (1420, 14715), (1635, 12780), (1775, 11772), (1917, 10900), (1962, 10650), (2130, 9810), (2180, 9585), (2556, 8175), (2700, 7739), (2725, 7668), (2943, 7100), (3195, 6540), (3270, 6390), (3550, 5886), (3834, 5450), (3924, 5325), (4260, 4905)]