256684480

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61703}}^1$

素因数の和:61733

約数の個数: 56

約数和(自身を含む): 658258272

約数和(自身を除く): 401573792

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 61703, 123406, 246812, 308515, 493624, 617030, 802139, 987248, 1234060, 1604278, 1974496, 2468120, 3208556, 3948992, 4010695, 4936240, 6417112, 8021390, 9872480, 12834224, 16042780, 19744960, 25668448, 32085560, 51336896, 64171120, 128342240, 256684480]

約数ペア:

[(1, 256684480), (2, 128342240), (4, 64171120), (5, 51336896), (8, 32085560), (10, 25668448), (13, 19744960), (16, 16042780), (20, 12834224), (26, 9872480), (32, 8021390), (40, 6417112), (52, 4936240), (64, 4010695), (65, 3948992), (80, 3208556), (104, 2468120), (130, 1974496), (160, 1604278), (208, 1234060), (260, 987248), (320, 802139), (416, 617030), (520, 493624), (832, 308515), (1040, 246812), (2080, 123406), (4160, 61703)]