202040680

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1$

素因数の和:251

約数の個数: 128

約数和(自身を含む): 505440000

約数和(自身を除く): 303399320

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 29, 38, 40, 58, 76, 89, 95, 103, 116, 145, 152, 178, 190, 206, 232, 290, 356, 380, 412, 445, 515, 551, 580, 712, 760, 824, 890, 1030, 1102, 1160, 1691, 1780, 1957, 2060, 2204, 2581, 2755, 2987, 3382, 3560, 3914, 4120, 4408, 5162, 5510, 5974, 6764, 7828, 8455, 9167, 9785, 10324, 11020, 11948, 12905, 13528, 14935, 15656, 16910, 18334, 19570, 20648, 22040, 23896, 25810, 29870, 33820, 36668, 39140, 45835, 49039, 51620, 56753, 59740, 67640, 73336, 78280, 91670, 98078, 103240, 113506, 119480, 174173, 183340, 196156, 227012, 245195, 265843, 283765, 348346, 366680, 392312, 454024, 490390, 531686, 567530, 696692, 870865, 980780, 1063372, 1135060, 1329215, 1393384, 1741730, 1961560, 2126744, 2270120, 2658430, 3483460, 5051017, 5316860, 6966920, 10102034, 10633720, 20204068, 25255085, 40408136, 50510170, 101020340, 202040680]

約数ペア:

[(1, 202040680), (2, 101020340), (4, 50510170), (5, 40408136), (8, 25255085), (10, 20204068), (19, 10633720), (20, 10102034), (29, 6966920), (38, 5316860), (40, 5051017), (58, 3483460), (76, 2658430), (89, 2270120), (95, 2126744), (103, 1961560), (116, 1741730), (145, 1393384), (152, 1329215), (178, 1135060), (190, 1063372), (206, 980780), (232, 870865), (290, 696692), (356, 567530), (380, 531686), (412, 490390), (445, 454024), (515, 392312), (551, 366680), (580, 348346), (712, 283765), (760, 265843), (824, 245195), (890, 227012), (1030, 196156), (1102, 183340), (1160, 174173), (1691, 119480), (1780, 113506), (1957, 103240), (2060, 98078), (2204, 91670), (2581, 78280), (2755, 73336), (2987, 67640), (3382, 59740), (3560, 56753), (3914, 51620), (4120, 49039), (4408, 45835), (5162, 39140), (5510, 36668), (5974, 33820), (6764, 29870), (7828, 25810), (8455, 23896), (9167, 22040), (9785, 20648), (10324, 19570), (11020, 18334), (11948, 16910), (12905, 15656), (13528, 14935)]