209689025

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{1511}}^1$

素因数の和:1602

約数の個数: 48

約数和(自身を含む): 325479168

約数和(自身を除く): 115790143

約数列:

[1, 5, 7, 13, 25, 35, 61, 65, 91, 175, 305, 325, 427, 455, 793, 1511, 1525, 2135, 2275, 3965, 5551, 7555, 10577, 10675, 19643, 19825, 27755, 37775, 52885, 92171, 98215, 137501, 138775, 264425, 460855, 491075, 645197, 687505, 1198223, 2304275, 3225985, 3437525, 5991115, 8387561, 16129925, 29955575, 41937805, 209689025]

約数ペア:

[(1, 209689025), (5, 41937805), (7, 29955575), (13, 16129925), (25, 8387561), (35, 5991115), (61, 3437525), (65, 3225985), (91, 2304275), (175, 1198223), (305, 687505), (325, 645197), (427, 491075), (455, 460855), (793, 264425), (1511, 138775), (1525, 137501), (2135, 98215), (2275, 92171), (3965, 52885), (5551, 37775), (7555, 27755), (10577, 19825), (10675, 19643)]