278703015

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{743}}^1\times {\mathrm{1471}}^1$

素因数の和:2239

約数の個数: 32

約数和(自身を含む): 473112576

約数和(自身を除く): 194409561

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 743, 1471, 2229, 3715, 4413, 7355, 11145, 12631, 22065, 25007, 37893, 63155, 75021, 125035, 189465, 375105, 1092953, 3278859, 5464765, 16394295, 18580201, 55740603, 92901005, 278703015]

約数ペア:

[(1, 278703015), (3, 92901005), (5, 55740603), (15, 18580201), (17, 16394295), (51, 5464765), (85, 3278859), (255, 1092953), (743, 375105), (1471, 189465), (2229, 125035), (3715, 75021), (4413, 63155), (7355, 37893), (11145, 25007), (12631, 22065)]