28525456

素因数分解:

$2^4\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{199}}^1$

素因数の和:272

約数の個数: 60

約数和(自身を含む): 60908800

約数和(自身を除く): 32383344

約数列:

[1, 2, 4, 8, 16, 17, 31, 34, 62, 68, 124, 136, 199, 248, 272, 289, 398, 496, 527, 578, 796, 1054, 1156, 1592, 2108, 2312, 3184, 3383, 4216, 4624, 6169, 6766, 8432, 8959, 12338, 13532, 17918, 24676, 27064, 35836, 49352, 54128, 57511, 71672, 98704, 104873, 115022, 143344, 209746, 230044, 419492, 460088, 838984, 920176, 1677968, 1782841, 3565682, 7131364, 14262728, 28525456]

約数ペア:

[(1, 28525456), (2, 14262728), (4, 7131364), (8, 3565682), (16, 1782841), (17, 1677968), (31, 920176), (34, 838984), (62, 460088), (68, 419492), (124, 230044), (136, 209746), (199, 143344), (248, 115022), (272, 104873), (289, 98704), (398, 71672), (496, 57511), (527, 54128), (578, 49352), (796, 35836), (1054, 27064), (1156, 24676), (1592, 17918), (2108, 13532), (2312, 12338), (3184, 8959), (3383, 8432), (4216, 6766), (4624, 6169)]