640437498

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{271}}^1\times {\mathrm{7723}}^1$

素因数の和:8019

約数の個数: 48

約数和(自身を含む): 1474851456

約数和(自身を除く): 834413958

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 51, 102, 153, 271, 306, 542, 813, 1626, 2439, 4607, 4878, 7723, 9214, 13821, 15446, 23169, 27642, 41463, 46338, 69507, 82926, 131291, 139014, 262582, 393873, 787746, 1181619, 2092933, 2363238, 4185866, 6278799, 12557598, 18836397, 35579861, 37672794, 71159722, 106739583, 213479166, 320218749, 640437498]

約数ペア:

[(1, 640437498), (2, 320218749), (3, 213479166), (6, 106739583), (9, 71159722), (17, 37672794), (18, 35579861), (34, 18836397), (51, 12557598), (102, 6278799), (153, 4185866), (271, 2363238), (306, 2092933), (542, 1181619), (813, 787746), (1626, 393873), (2439, 262582), (4607, 139014), (4878, 131291), (7723, 82926), (9214, 69507), (13821, 46338), (15446, 41463), (23169, 27642)]