20125664

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{479}}^1$

素因数の和:603

約数の個数: 48

約数和(自身を含む): 43182720

約数和(自身を除く): 23057056

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 101, 104, 202, 208, 404, 416, 479, 808, 958, 1313, 1616, 1916, 2626, 3232, 3832, 5252, 6227, 7664, 10504, 12454, 15328, 21008, 24908, 42016, 48379, 49816, 96758, 99632, 193516, 199264, 387032, 628927, 774064, 1257854, 1548128, 2515708, 5031416, 10062832, 20125664]

約数ペア:

[(1, 20125664), (2, 10062832), (4, 5031416), (8, 2515708), (13, 1548128), (16, 1257854), (26, 774064), (32, 628927), (52, 387032), (101, 199264), (104, 193516), (202, 99632), (208, 96758), (404, 49816), (416, 48379), (479, 42016), (808, 24908), (958, 21008), (1313, 15328), (1616, 12454), (1916, 10504), (2626, 7664), (3232, 6227), (3832, 5252)]