25830440

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{563}}^1$

素因数の和:642

約数の個数: 64

約数和(自身を含む): 61724160

約数和(自身を除く): 35893720

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 37, 40, 62, 74, 124, 148, 155, 185, 248, 296, 310, 370, 563, 620, 740, 1126, 1147, 1240, 1480, 2252, 2294, 2815, 4504, 4588, 5630, 5735, 9176, 11260, 11470, 17453, 20831, 22520, 22940, 34906, 41662, 45880, 69812, 83324, 87265, 104155, 139624, 166648, 174530, 208310, 349060, 416620, 645761, 698120, 833240, 1291522, 2583044, 3228805, 5166088, 6457610, 12915220, 25830440]

約数ペア:

[(1, 25830440), (2, 12915220), (4, 6457610), (5, 5166088), (8, 3228805), (10, 2583044), (20, 1291522), (31, 833240), (37, 698120), (40, 645761), (62, 416620), (74, 349060), (124, 208310), (148, 174530), (155, 166648), (185, 139624), (248, 104155), (296, 87265), (310, 83324), (370, 69812), (563, 45880), (620, 41662), (740, 34906), (1126, 22940), (1147, 22520), (1240, 20831), (1480, 17453), (2252, 11470), (2294, 11260), (2815, 9176), (4504, 5735), (4588, 5630)]