51440080

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1\times {\mathrm{127}}^1$

素因数の和:284

約数の個数: 80

約数和(自身を含む): 123992064

約数和(自身を除く): 72551984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 83, 122, 127, 166, 244, 254, 305, 332, 415, 488, 508, 610, 635, 664, 830, 976, 1016, 1220, 1270, 1328, 1660, 2032, 2440, 2540, 3320, 4880, 5063, 5080, 6640, 7747, 10126, 10160, 10541, 15494, 20252, 21082, 25315, 30988, 38735, 40504, 42164, 50630, 52705, 61976, 77470, 81008, 84328, 101260, 105410, 123952, 154940, 168656, 202520, 210820, 309880, 405040, 421640, 619760, 643001, 843280, 1286002, 2572004, 3215005, 5144008, 6430010, 10288016, 12860020, 25720040, 51440080]

約数ペア:

[(1, 51440080), (2, 25720040), (4, 12860020), (5, 10288016), (8, 6430010), (10, 5144008), (16, 3215005), (20, 2572004), (40, 1286002), (61, 843280), (80, 643001), (83, 619760), (122, 421640), (127, 405040), (166, 309880), (244, 210820), (254, 202520), (305, 168656), (332, 154940), (415, 123952), (488, 105410), (508, 101260), (610, 84328), (635, 81008), (664, 77470), (830, 61976), (976, 52705), (1016, 50630), (1220, 42164), (1270, 40504), (1328, 38735), (1660, 30988), (2032, 25315), (2440, 21082), (2540, 20252), (3320, 15494), (4880, 10541), (5063, 10160), (5080, 10126), (6640, 7747)]