71346940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{1549}}^1$

素因数の和:1619

約数の個数: 72

約数和(自身を含む): 178113600

約数和(自身を除く): 106766660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 49, 70, 94, 98, 140, 188, 196, 235, 245, 329, 470, 490, 658, 940, 980, 1316, 1549, 1645, 2303, 3098, 3290, 4606, 6196, 6580, 7745, 9212, 10843, 11515, 15490, 21686, 23030, 30980, 43372, 46060, 54215, 72803, 75901, 108430, 145606, 151802, 216860, 291212, 303604, 364015, 379505, 509621, 728030, 759010, 1019242, 1456060, 1518020, 2038484, 2548105, 3567347, 5096210, 7134694, 10192420, 14269388, 17836735, 35673470, 71346940]

約数ペア:

[(1, 71346940), (2, 35673470), (4, 17836735), (5, 14269388), (7, 10192420), (10, 7134694), (14, 5096210), (20, 3567347), (28, 2548105), (35, 2038484), (47, 1518020), (49, 1456060), (70, 1019242), (94, 759010), (98, 728030), (140, 509621), (188, 379505), (196, 364015), (235, 303604), (245, 291212), (329, 216860), (470, 151802), (490, 145606), (658, 108430), (940, 75901), (980, 72803), (1316, 54215), (1549, 46060), (1645, 43372), (2303, 30980), (3098, 23030), (3290, 21686), (4606, 15490), (6196, 11515), (6580, 10843), (7745, 9212)]