64990660

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1$

素因数の和:170

約数の個数: 144

約数和(自身を含む): 173746944

約数和(自身を除く): 108756284

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 47, 49, 68, 70, 83, 85, 94, 98, 119, 140, 166, 170, 188, 196, 235, 238, 245, 329, 332, 340, 415, 470, 476, 490, 581, 595, 658, 799, 830, 833, 940, 980, 1162, 1190, 1316, 1411, 1598, 1645, 1660, 1666, 2303, 2324, 2380, 2822, 2905, 3196, 3290, 3332, 3901, 3995, 4067, 4165, 4606, 5593, 5644, 5810, 6580, 7055, 7802, 7990, 8134, 8330, 9212, 9877, 11186, 11515, 11620, 14110, 15604, 15980, 16268, 16660, 19505, 19754, 20335, 22372, 23030, 27307, 27965, 28220, 39010, 39151, 39508, 40670, 46060, 49385, 54614, 55930, 66317, 69139, 78020, 78302, 81340, 98770, 109228, 111860, 132634, 136535, 138278, 156604, 191149, 195755, 197540, 265268, 273070, 276556, 331585, 345695, 382298, 391510, 464219, 546140, 663170, 691390, 764596, 783020, 928438, 955745, 1326340, 1382780, 1856876, 1911490, 2321095, 3249533, 3822980, 4642190, 6499066, 9284380, 12998132, 16247665, 32495330, 64990660]

約数ペア:

[(1, 64990660), (2, 32495330), (4, 16247665), (5, 12998132), (7, 9284380), (10, 6499066), (14, 4642190), (17, 3822980), (20, 3249533), (28, 2321095), (34, 1911490), (35, 1856876), (47, 1382780), (49, 1326340), (68, 955745), (70, 928438), (83, 783020), (85, 764596), (94, 691390), (98, 663170), (119, 546140), (140, 464219), (166, 391510), (170, 382298), (188, 345695), (196, 331585), (235, 276556), (238, 273070), (245, 265268), (329, 197540), (332, 195755), (340, 191149), (415, 156604), (470, 138278), (476, 136535), (490, 132634), (581, 111860), (595, 109228), (658, 98770), (799, 81340), (830, 78302), (833, 78020), (940, 69139), (980, 66317), (1162, 55930), (1190, 54614), (1316, 49385), (1411, 46060), (1598, 40670), (1645, 39508), (1660, 39151), (1666, 39010), (2303, 28220), (2324, 27965), (2380, 27307), (2822, 23030), (2905, 22372), (3196, 20335), (3290, 19754), (3332, 19505), (3901, 16660), (3995, 16268), (4067, 15980), (4165, 15604), (4606, 14110), (5593, 11620), (5644, 11515), (5810, 11186), (6580, 9877), (7055, 9212), (7802, 8330), (7990, 8134)]