25224940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{439}}^1$

素因数の和:491

約数の個数: 72

約数和(自身を含む): 60873120

約数和(自身を除く): 35648180

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 169, 170, 221, 260, 338, 340, 439, 442, 676, 845, 878, 884, 1105, 1690, 1756, 2195, 2210, 2873, 3380, 4390, 4420, 5707, 5746, 7463, 8780, 11414, 11492, 14365, 14926, 22828, 28535, 28730, 29852, 37315, 57070, 57460, 74191, 74630, 97019, 114140, 148382, 149260, 194038, 296764, 370955, 388076, 485095, 741910, 970190, 1261247, 1483820, 1940380, 2522494, 5044988, 6306235, 12612470, 25224940]

約数ペア:

[(1, 25224940), (2, 12612470), (4, 6306235), (5, 5044988), (10, 2522494), (13, 1940380), (17, 1483820), (20, 1261247), (26, 970190), (34, 741910), (52, 485095), (65, 388076), (68, 370955), (85, 296764), (130, 194038), (169, 149260), (170, 148382), (221, 114140), (260, 97019), (338, 74630), (340, 74191), (439, 57460), (442, 57070), (676, 37315), (845, 29852), (878, 28730), (884, 28535), (1105, 22828), (1690, 14926), (1756, 14365), (2195, 11492), (2210, 11414), (2873, 8780), (3380, 7463), (4390, 5746), (4420, 5707)]