25082720

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{389}}^1$

素因数の和:448

約数の個数: 96

約数和(自身を含む): 66044160

約数和(自身を除く): 40961440

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 65, 80, 104, 124, 130, 155, 160, 208, 248, 260, 310, 389, 403, 416, 496, 520, 620, 778, 806, 992, 1040, 1240, 1556, 1612, 1945, 2015, 2080, 2480, 3112, 3224, 3890, 4030, 4960, 5057, 6224, 6448, 7780, 8060, 10114, 12059, 12448, 12896, 15560, 16120, 20228, 24118, 25285, 31120, 32240, 40456, 48236, 50570, 60295, 62240, 64480, 80912, 96472, 101140, 120590, 156767, 161824, 192944, 202280, 241180, 313534, 385888, 404560, 482360, 627068, 783835, 809120, 964720, 1254136, 1567670, 1929440, 2508272, 3135340, 5016544, 6270680, 12541360, 25082720]

約数ペア:

[(1, 25082720), (2, 12541360), (4, 6270680), (5, 5016544), (8, 3135340), (10, 2508272), (13, 1929440), (16, 1567670), (20, 1254136), (26, 964720), (31, 809120), (32, 783835), (40, 627068), (52, 482360), (62, 404560), (65, 385888), (80, 313534), (104, 241180), (124, 202280), (130, 192944), (155, 161824), (160, 156767), (208, 120590), (248, 101140), (260, 96472), (310, 80912), (389, 64480), (403, 62240), (416, 60295), (496, 50570), (520, 48236), (620, 40456), (778, 32240), (806, 31120), (992, 25285), (1040, 24118), (1240, 20228), (1556, 16120), (1612, 15560), (1945, 12896), (2015, 12448), (2080, 12059), (2480, 10114), (3112, 8060), (3224, 7780), (3890, 6448), (4030, 6224), (4960, 5057)]