20706464

素因数分解:

$2^5\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{421}}^1$

素因数の和:513

約数の個数: 48

約数和(自身を含む): 43069320

約数和(自身を除く): 22362856

約数列:

[1, 2, 4, 8, 16, 29, 32, 53, 58, 106, 116, 212, 232, 421, 424, 464, 842, 848, 928, 1537, 1684, 1696, 3074, 3368, 6148, 6736, 12209, 12296, 13472, 22313, 24418, 24592, 44626, 48836, 49184, 89252, 97672, 178504, 195344, 357008, 390688, 647077, 714016, 1294154, 2588308, 5176616, 10353232, 20706464]

約数ペア:

[(1, 20706464), (2, 10353232), (4, 5176616), (8, 2588308), (16, 1294154), (29, 714016), (32, 647077), (53, 390688), (58, 357008), (106, 195344), (116, 178504), (212, 97672), (232, 89252), (421, 49184), (424, 48836), (464, 44626), (842, 24592), (848, 24418), (928, 22313), (1537, 13472), (1684, 12296), (1696, 12209), (3074, 6736), (3368, 6148)]