1285969400

素因数分解:

$2^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{338413}}^1$

素因数の和:338448

約数の個数: 48

約数和(自身を含む): 3147250200

約数和(自身を除く): 1861280800

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 152, 190, 200, 380, 475, 760, 950, 1900, 3800, 338413, 676826, 1353652, 1692065, 2707304, 3384130, 6429847, 6768260, 8460325, 12859694, 13536520, 16920650, 25719388, 32149235, 33841300, 51438776, 64298470, 67682600, 128596940, 160746175, 257193880, 321492350, 642984700, 1285969400]

約数ペア:

[(1, 1285969400), (2, 642984700), (4, 321492350), (5, 257193880), (8, 160746175), (10, 128596940), (19, 67682600), (20, 64298470), (25, 51438776), (38, 33841300), (40, 32149235), (50, 25719388), (76, 16920650), (95, 13536520), (100, 12859694), (152, 8460325), (190, 6768260), (200, 6429847), (380, 3384130), (475, 2707304), (760, 1692065), (950, 1353652), (1900, 676826), (3800, 338413)]