639032023

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{97}}^1$

素因数の和:256

約数の個数: 64

約数和(自身を含む): 853493760

約数和(自身を除く): 214461737

約数列:

[1, 7, 17, 23, 29, 83, 97, 119, 161, 203, 391, 493, 581, 667, 679, 1411, 1649, 1909, 2231, 2407, 2737, 2813, 3451, 4669, 8051, 9877, 11339, 11543, 13363, 15617, 16849, 19691, 32453, 37927, 40919, 47821, 55361, 56357, 64699, 79373, 136867, 185173, 227171, 233479, 265489, 286433, 334747, 387527, 452893, 941137, 958069, 1099883, 1296211, 1634353, 3147941, 3969143, 5370017, 6587959, 7699181, 22035587, 27784001, 37590119, 91290289, 639032023]

約数ペア:

[(1, 639032023), (7, 91290289), (17, 37590119), (23, 27784001), (29, 22035587), (83, 7699181), (97, 6587959), (119, 5370017), (161, 3969143), (203, 3147941), (391, 1634353), (493, 1296211), (581, 1099883), (667, 958069), (679, 941137), (1411, 452893), (1649, 387527), (1909, 334747), (2231, 286433), (2407, 265489), (2737, 233479), (2813, 227171), (3451, 185173), (4669, 136867), (8051, 79373), (9877, 64699), (11339, 56357), (11543, 55361), (13363, 47821), (15617, 40919), (16849, 37927), (19691, 32453)]