28408808065

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{191}}^1\times {\mathrm{1031}}^1$

素因数の和:1342

約数の個数: 64

約数和(自身を含む): 38918651904

約数和(自身を除く): 10509843839

約数列:

[1, 5, 11, 43, 55, 61, 191, 215, 305, 473, 671, 955, 1031, 2101, 2365, 2623, 3355, 5155, 8213, 10505, 11341, 11651, 13115, 28853, 41065, 44333, 56705, 58255, 62891, 90343, 128161, 144265, 196921, 221665, 314455, 451715, 487663, 500993, 640805, 691801, 984605, 2166131, 2438315, 2504965, 2704313, 3459005, 5510923, 8467603, 10830655, 12012181, 13521565, 27554615, 29747443, 42338015, 60060905, 93143633, 132133991, 148737215, 465718165, 516523783, 660669955, 2582618915, 5681761613, 28408808065]

約数ペア:

[(1, 28408808065), (5, 5681761613), (11, 2582618915), (43, 660669955), (55, 516523783), (61, 465718165), (191, 148737215), (215, 132133991), (305, 93143633), (473, 60060905), (671, 42338015), (955, 29747443), (1031, 27554615), (2101, 13521565), (2365, 12012181), (2623, 10830655), (3355, 8467603), (5155, 5510923), (8213, 3459005), (10505, 2704313), (11341, 2504965), (11651, 2438315), (13115, 2166131), (28853, 984605), (41065, 691801), (44333, 640805), (56705, 500993), (58255, 487663), (62891, 451715), (90343, 314455), (128161, 221665), (144265, 196921)]