20405208

素因数分解:

$2^3\times 3^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{233}}^1$

素因数の和:372

約数の個数: 64

約数和(自身を含む): 53071200

約数和(自身を除く): 32665992

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 41, 82, 89, 123, 164, 178, 233, 246, 267, 328, 356, 466, 492, 534, 699, 712, 932, 984, 1068, 1398, 1864, 2136, 2796, 3649, 5592, 7298, 9553, 10947, 14596, 19106, 20737, 21894, 28659, 29192, 38212, 41474, 43788, 57318, 62211, 76424, 82948, 87576, 114636, 124422, 165896, 229272, 248844, 497688, 850217, 1700434, 2550651, 3400868, 5101302, 6801736, 10202604, 20405208]

約数ペア:

[(1, 20405208), (2, 10202604), (3, 6801736), (4, 5101302), (6, 3400868), (8, 2550651), (12, 1700434), (24, 850217), (41, 497688), (82, 248844), (89, 229272), (123, 165896), (164, 124422), (178, 114636), (233, 87576), (246, 82948), (267, 76424), (328, 62211), (356, 57318), (466, 43788), (492, 41474), (534, 38212), (699, 29192), (712, 28659), (932, 21894), (984, 20737), (1068, 19106), (1398, 14596), (1864, 10947), (2136, 9553), (2796, 7298), (3649, 5592)]