13261000

素因数分解:

$2^3\times 5^3\times {\mathrm{89}}^1\times {\mathrm{149}}^1$

素因数の和:259

約数の個数: 64

約数和(自身を含む): 31590000

約数和(自身を除く): 18329000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 89, 100, 125, 149, 178, 200, 250, 298, 356, 445, 500, 596, 712, 745, 890, 1000, 1192, 1490, 1780, 2225, 2980, 3560, 3725, 4450, 5960, 7450, 8900, 11125, 13261, 14900, 17800, 18625, 22250, 26522, 29800, 37250, 44500, 53044, 66305, 74500, 89000, 106088, 132610, 149000, 265220, 331525, 530440, 663050, 1326100, 1657625, 2652200, 3315250, 6630500, 13261000]

約数ペア:

[(1, 13261000), (2, 6630500), (4, 3315250), (5, 2652200), (8, 1657625), (10, 1326100), (20, 663050), (25, 530440), (40, 331525), (50, 265220), (89, 149000), (100, 132610), (125, 106088), (149, 89000), (178, 74500), (200, 66305), (250, 53044), (298, 44500), (356, 37250), (445, 29800), (500, 26522), (596, 22250), (712, 18625), (745, 17800), (890, 14900), (1000, 13261), (1192, 11125), (1490, 8900), (1780, 7450), (2225, 5960), (2980, 4450), (3560, 3725)]