1691189810

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{9901}}^1$

素因数の和:9987

約数の個数: 64

約数和(自身を含む): 3422131200

約数和(自身を除く): 1730941390

約数列:

[1, 2, 5, 10, 19, 29, 31, 38, 58, 62, 95, 145, 155, 190, 290, 310, 551, 589, 899, 1102, 1178, 1798, 2755, 2945, 4495, 5510, 5890, 8990, 9901, 17081, 19802, 34162, 49505, 85405, 99010, 170810, 188119, 287129, 306931, 376238, 574258, 613862, 940595, 1435645, 1534655, 1881190, 2871290, 3069310, 5455451, 5831689, 8900999, 10910902, 11663378, 17801998, 27277255, 29158445, 44504995, 54554510, 58316890, 89009990, 169118981, 338237962, 845594905, 1691189810]

約数ペア:

[(1, 1691189810), (2, 845594905), (5, 338237962), (10, 169118981), (19, 89009990), (29, 58316890), (31, 54554510), (38, 44504995), (58, 29158445), (62, 27277255), (95, 17801998), (145, 11663378), (155, 10910902), (190, 8900999), (290, 5831689), (310, 5455451), (551, 3069310), (589, 2871290), (899, 1881190), (1102, 1534655), (1178, 1435645), (1798, 940595), (2755, 613862), (2945, 574258), (4495, 376238), (5510, 306931), (5890, 287129), (8990, 188119), (9901, 170810), (17081, 99010), (19802, 85405), (34162, 49505)]