69851990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{17333}}^1$

素因数の和:17384

約数の個数: 32

約数和(自身を含む): 139781376

約数和(自身を除く): 69929386

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 17333, 34666, 86665, 173330, 225329, 450658, 537323, 1074646, 1126645, 2253290, 2686615, 5373230, 6985199, 13970398, 34925995, 69851990]

約数ペア:

[(1, 69851990), (2, 34925995), (5, 13970398), (10, 6985199), (13, 5373230), (26, 2686615), (31, 2253290), (62, 1126645), (65, 1074646), (130, 537323), (155, 450658), (310, 225329), (403, 173330), (806, 86665), (2015, 34666), (4030, 17333)]