515520980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{3547}}^1$

素因数の和:3625

約数の個数: 72

約数和(自身を含む): 1199876832

約数和(自身を除く): 684355852

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 43, 52, 65, 86, 130, 169, 172, 215, 260, 338, 430, 559, 676, 845, 860, 1118, 1690, 2236, 2795, 3380, 3547, 5590, 7094, 7267, 11180, 14188, 14534, 17735, 29068, 35470, 36335, 46111, 70940, 72670, 92222, 145340, 152521, 184444, 230555, 305042, 461110, 599443, 610084, 762605, 922220, 1198886, 1525210, 1982773, 2397772, 2997215, 3050420, 3965546, 5994430, 7931092, 9913865, 11988860, 19827730, 25776049, 39655460, 51552098, 103104196, 128880245, 257760490, 515520980]

約数ペア:

[(1, 515520980), (2, 257760490), (4, 128880245), (5, 103104196), (10, 51552098), (13, 39655460), (20, 25776049), (26, 19827730), (43, 11988860), (52, 9913865), (65, 7931092), (86, 5994430), (130, 3965546), (169, 3050420), (172, 2997215), (215, 2397772), (260, 1982773), (338, 1525210), (430, 1198886), (559, 922220), (676, 762605), (845, 610084), (860, 599443), (1118, 461110), (1690, 305042), (2236, 230555), (2795, 184444), (3380, 152521), (3547, 145340), (5590, 92222), (7094, 72670), (7267, 70940), (11180, 46111), (14188, 36335), (14534, 35470), (17735, 29068)]