1311500

素因数分解:

$2^2\times 5^3\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:123

約数の個数: 48

約数和(自身を含む): 2978976

約数和(自身を除く): 1667476

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 61, 86, 100, 122, 125, 172, 215, 244, 250, 305, 430, 500, 610, 860, 1075, 1220, 1525, 2150, 2623, 3050, 4300, 5246, 5375, 6100, 7625, 10492, 10750, 13115, 15250, 21500, 26230, 30500, 52460, 65575, 131150, 262300, 327875, 655750, 1311500]

約数ペア:

[(1, 1311500), (2, 655750), (4, 327875), (5, 262300), (10, 131150), (20, 65575), (25, 52460), (43, 30500), (50, 26230), (61, 21500), (86, 15250), (100, 13115), (122, 10750), (125, 10492), (172, 7625), (215, 6100), (244, 5375), (250, 5246), (305, 4300), (430, 3050), (500, 2623), (610, 2150), (860, 1525), (1075, 1220)]