28490218990

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{51511}}^1$

素因数の和:51649

約数の個数: 64

約数和(自身を含む): 56078023680

約数和(自身を除く): 27587804690

約数列:

[1, 2, 5, 10, 19, 38, 41, 71, 82, 95, 142, 190, 205, 355, 410, 710, 779, 1349, 1558, 2698, 2911, 3895, 5822, 6745, 7790, 13490, 14555, 29110, 51511, 55309, 103022, 110618, 257555, 276545, 515110, 553090, 978709, 1957418, 2111951, 3657281, 4223902, 4893545, 7314562, 9787090, 10559755, 18286405, 21119510, 36572810, 40127069, 69488339, 80254138, 138976678, 149948521, 200635345, 299897042, 347441695, 401270690, 694883390, 749742605, 1499485210, 2849021899, 5698043798, 14245109495, 28490218990]

約数ペア:

[(1, 28490218990), (2, 14245109495), (5, 5698043798), (10, 2849021899), (19, 1499485210), (38, 749742605), (41, 694883390), (71, 401270690), (82, 347441695), (95, 299897042), (142, 200635345), (190, 149948521), (205, 138976678), (355, 80254138), (410, 69488339), (710, 40127069), (779, 36572810), (1349, 21119510), (1558, 18286405), (2698, 10559755), (2911, 9787090), (3895, 7314562), (5822, 4893545), (6745, 4223902), (7790, 3657281), (13490, 2111951), (14555, 1957418), (29110, 978709), (51511, 553090), (55309, 515110), (103022, 276545), (110618, 257555)]