20178021032

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17659}}^1\times {\mathrm{10987}}^1$

素因数の和:28665

約数の個数: 32

約数和(自身を含む): 40750096800

約数和(自身を除く): 20572075768

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 10987, 17659, 21974, 35318, 43948, 70636, 87896, 141272, 142831, 229567, 285662, 459134, 571324, 918268, 1142648, 1836536, 194019433, 388038866, 776077732, 1552155464, 2522252629, 5044505258, 10089010516, 20178021032]

約数ペア:

[(1, 20178021032), (2, 10089010516), (4, 5044505258), (8, 2522252629), (13, 1552155464), (26, 776077732), (52, 388038866), (104, 194019433), (10987, 1836536), (17659, 1142648), (21974, 918268), (35318, 571324), (43948, 459134), (70636, 285662), (87896, 229567), (141272, 142831)]