20658060

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1$

素因数の和:232

約数の個数: 144

約数和(自身を含む): 68324256

約数和(自身を除く): 47666196

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 43, 45, 51, 60, 68, 85, 86, 90, 102, 129, 153, 157, 170, 172, 180, 204, 215, 255, 258, 306, 314, 340, 387, 430, 471, 510, 516, 612, 628, 645, 731, 765, 774, 785, 860, 942, 1020, 1290, 1413, 1462, 1530, 1548, 1570, 1884, 1935, 2193, 2355, 2580, 2669, 2826, 2924, 3060, 3140, 3655, 3870, 4386, 4710, 5338, 5652, 6579, 6751, 7065, 7310, 7740, 8007, 8772, 9420, 10676, 10965, 13158, 13345, 13502, 14130, 14620, 16014, 20253, 21930, 24021, 26316, 26690, 27004, 28260, 32028, 32895, 33755, 40035, 40506, 43860, 48042, 53380, 60759, 65790, 67510, 80070, 81012, 96084, 101265, 114767, 120105, 121518, 131580, 135020, 160140, 202530, 229534, 240210, 243036, 303795, 344301, 405060, 459068, 480420, 573835, 607590, 688602, 1032903, 1147670, 1215180, 1377204, 1721505, 2065806, 2295340, 3443010, 4131612, 5164515, 6886020, 10329030, 20658060]

約数ペア:

[(1, 20658060), (2, 10329030), (3, 6886020), (4, 5164515), (5, 4131612), (6, 3443010), (9, 2295340), (10, 2065806), (12, 1721505), (15, 1377204), (17, 1215180), (18, 1147670), (20, 1032903), (30, 688602), (34, 607590), (36, 573835), (43, 480420), (45, 459068), (51, 405060), (60, 344301), (68, 303795), (85, 243036), (86, 240210), (90, 229534), (102, 202530), (129, 160140), (153, 135020), (157, 131580), (170, 121518), (172, 120105), (180, 114767), (204, 101265), (215, 96084), (255, 81012), (258, 80070), (306, 67510), (314, 65790), (340, 60759), (387, 53380), (430, 48042), (471, 43860), (510, 40506), (516, 40035), (612, 33755), (628, 32895), (645, 32028), (731, 28260), (765, 27004), (774, 26690), (785, 26316), (860, 24021), (942, 21930), (1020, 20253), (1290, 16014), (1413, 14620), (1462, 14130), (1530, 13502), (1548, 13345), (1570, 13158), (1884, 10965), (1935, 10676), (2193, 9420), (2355, 8772), (2580, 8007), (2669, 7740), (2826, 7310), (2924, 7065), (3060, 6751), (3140, 6579), (3655, 5652), (3870, 5338), (4386, 4710)]