200517890

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{457}}^1$

素因数の和:599

約数の個数: 64

約数和(自身を含む): 400658400

約数和(自身を除く): 200140510

約数列:

[1, 2, 5, 10, 17, 29, 34, 58, 85, 89, 145, 170, 178, 290, 445, 457, 493, 890, 914, 986, 1513, 2285, 2465, 2581, 3026, 4570, 4930, 5162, 7565, 7769, 12905, 13253, 15130, 15538, 25810, 26506, 38845, 40673, 43877, 66265, 77690, 81346, 87754, 132530, 203365, 219385, 225301, 406730, 438770, 450602, 691441, 1126505, 1179517, 1382882, 2253010, 2359034, 3457205, 5897585, 6914410, 11795170, 20051789, 40103578, 100258945, 200517890]

約数ペア:

[(1, 200517890), (2, 100258945), (5, 40103578), (10, 20051789), (17, 11795170), (29, 6914410), (34, 5897585), (58, 3457205), (85, 2359034), (89, 2253010), (145, 1382882), (170, 1179517), (178, 1126505), (290, 691441), (445, 450602), (457, 438770), (493, 406730), (890, 225301), (914, 219385), (986, 203365), (1513, 132530), (2285, 87754), (2465, 81346), (2581, 77690), (3026, 66265), (4570, 43877), (4930, 40673), (5162, 38845), (7565, 26506), (7769, 25810), (12905, 15538), (13253, 15130)]