440648

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1$

素因数の和:261

約数の個数: 32

約数和(自身を含む): 940800

約数和(自身を除く): 500152

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 223, 247, 446, 494, 892, 988, 1784, 1976, 2899, 4237, 5798, 8474, 11596, 16948, 23192, 33896, 55081, 110162, 220324, 440648]

約数ペア:

[(1, 440648), (2, 220324), (4, 110162), (8, 55081), (13, 33896), (19, 23192), (26, 16948), (38, 11596), (52, 8474), (76, 5798), (104, 4237), (152, 2899), (223, 1976), (247, 1784), (446, 988), (494, 892)]