61881700

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{409}}^1$

素因数の和:529

約数の個数: 72

約数和(自身を含む): 144131400

約数和(自身を除く): 82249700

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 89, 100, 170, 178, 340, 356, 409, 425, 445, 818, 850, 890, 1513, 1636, 1700, 1780, 2045, 2225, 3026, 4090, 4450, 6052, 6953, 7565, 8180, 8900, 10225, 13906, 15130, 20450, 27812, 30260, 34765, 36401, 37825, 40900, 69530, 72802, 75650, 139060, 145604, 151300, 173825, 182005, 347650, 364010, 618817, 695300, 728020, 910025, 1237634, 1820050, 2475268, 3094085, 3640100, 6188170, 12376340, 15470425, 30940850, 61881700]

約数ペア:

[(1, 61881700), (2, 30940850), (4, 15470425), (5, 12376340), (10, 6188170), (17, 3640100), (20, 3094085), (25, 2475268), (34, 1820050), (50, 1237634), (68, 910025), (85, 728020), (89, 695300), (100, 618817), (170, 364010), (178, 347650), (340, 182005), (356, 173825), (409, 151300), (425, 145604), (445, 139060), (818, 75650), (850, 72802), (890, 69530), (1513, 40900), (1636, 37825), (1700, 36401), (1780, 34765), (2045, 30260), (2225, 27812), (3026, 20450), (4090, 15130), (4450, 13906), (6052, 10225), (6953, 8900), (7565, 8180)]