81821896

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{619}}^1$

素因数の和:710

約数の個数: 64

約数和(自身を含む): 174988800

約数和(自身を除く): 93166904

約数列:

[1, 2, 4, 8, 13, 26, 31, 41, 52, 62, 82, 104, 124, 164, 248, 328, 403, 533, 619, 806, 1066, 1238, 1271, 1612, 2132, 2476, 2542, 3224, 4264, 4952, 5084, 8047, 10168, 16094, 16523, 19189, 25379, 32188, 33046, 38378, 50758, 64376, 66092, 76756, 101516, 132184, 153512, 203032, 249457, 329927, 498914, 659854, 786749, 997828, 1319708, 1573498, 1995656, 2639416, 3146996, 6293992, 10227737, 20455474, 40910948, 81821896]

約数ペア:

[(1, 81821896), (2, 40910948), (4, 20455474), (8, 10227737), (13, 6293992), (26, 3146996), (31, 2639416), (41, 1995656), (52, 1573498), (62, 1319708), (82, 997828), (104, 786749), (124, 659854), (164, 498914), (248, 329927), (328, 249457), (403, 203032), (533, 153512), (619, 132184), (806, 101516), (1066, 76756), (1238, 66092), (1271, 64376), (1612, 50758), (2132, 38378), (2476, 33046), (2542, 32188), (3224, 25379), (4264, 19189), (4952, 16523), (5084, 16094), (8047, 10168)]