20139609880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{131}}^1\times {\mathrm{5011}}^1$

素因数の和:5225

約数の個数: 128

約数和(自身を含む): 50015750400

約数和(自身を除く): 29876140520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 59, 65, 104, 118, 130, 131, 236, 260, 262, 295, 472, 520, 524, 590, 655, 767, 1048, 1180, 1310, 1534, 1703, 2360, 2620, 3068, 3406, 3835, 5011, 5240, 6136, 6812, 7670, 7729, 8515, 10022, 13624, 15340, 15458, 17030, 20044, 25055, 30680, 30916, 34060, 38645, 40088, 50110, 61832, 65143, 68120, 77290, 100220, 100477, 130286, 154580, 200440, 200954, 260572, 295649, 309160, 325715, 401908, 502385, 521144, 591298, 651430, 656441, 803816, 1004770, 1182596, 1302860, 1312882, 1478245, 2009540, 2365192, 2605720, 2625764, 2956490, 3282205, 3843437, 4019080, 5251528, 5912980, 6564410, 7686874, 8533733, 11825960, 13128820, 15373748, 17067466, 19217185, 26257640, 30747496, 34134932, 38434370, 38730019, 42668665, 68269864, 76868740, 77460038, 85337330, 153737480, 154920076, 170674660, 193650095, 309840152, 341349320, 387300190, 503490247, 774600380, 1006980494, 1549200760, 2013960988, 2517451235, 4027921976, 5034902470, 10069804940, 20139609880]

約数ペア:

[(1, 20139609880), (2, 10069804940), (4, 5034902470), (5, 4027921976), (8, 2517451235), (10, 2013960988), (13, 1549200760), (20, 1006980494), (26, 774600380), (40, 503490247), (52, 387300190), (59, 341349320), (65, 309840152), (104, 193650095), (118, 170674660), (130, 154920076), (131, 153737480), (236, 85337330), (260, 77460038), (262, 76868740), (295, 68269864), (472, 42668665), (520, 38730019), (524, 38434370), (590, 34134932), (655, 30747496), (767, 26257640), (1048, 19217185), (1180, 17067466), (1310, 15373748), (1534, 13128820), (1703, 11825960), (2360, 8533733), (2620, 7686874), (3068, 6564410), (3406, 5912980), (3835, 5251528), (5011, 4019080), (5240, 3843437), (6136, 3282205), (6812, 2956490), (7670, 2625764), (7729, 2605720), (8515, 2365192), (10022, 2009540), (13624, 1478245), (15340, 1312882), (15458, 1302860), (17030, 1182596), (20044, 1004770), (25055, 803816), (30680, 656441), (30916, 651430), (34060, 591298), (38645, 521144), (40088, 502385), (50110, 401908), (61832, 325715), (65143, 309160), (68120, 295649), (77290, 260572), (100220, 200954), (100477, 200440), (130286, 154580)]