247366275

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{6857}}^1$

素因数の和:6920

約数の個数: 48

約数和(自身を含む): 452408544

約数和(自身を除く): 205042269

約数列:

[1, 3, 5, 13, 15, 25, 37, 39, 65, 75, 111, 185, 195, 325, 481, 555, 925, 975, 1443, 2405, 2775, 6857, 7215, 12025, 20571, 34285, 36075, 89141, 102855, 171425, 253709, 267423, 445705, 514275, 761127, 1268545, 1337115, 2228525, 3298217, 3805635, 6342725, 6685575, 9894651, 16491085, 19028175, 49473255, 82455425, 247366275]

約数ペア:

[(1, 247366275), (3, 82455425), (5, 49473255), (13, 19028175), (15, 16491085), (25, 9894651), (37, 6685575), (39, 6342725), (65, 3805635), (75, 3298217), (111, 2228525), (185, 1337115), (195, 1268545), (325, 761127), (481, 514275), (555, 445705), (925, 267423), (975, 253709), (1443, 171425), (2405, 102855), (2775, 89141), (6857, 36075), (7215, 34285), (12025, 20571)]