651248

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1$

素因数の和:153

約数の個数: 40

約数和(自身を含む): 1416576

約数和(自身を除く): 765328

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 101, 104, 124, 202, 208, 248, 403, 404, 496, 806, 808, 1313, 1612, 1616, 2626, 3131, 3224, 5252, 6262, 6448, 10504, 12524, 21008, 25048, 40703, 50096, 81406, 162812, 325624, 651248]

約数ペア:

[(1, 651248), (2, 325624), (4, 162812), (8, 81406), (13, 50096), (16, 40703), (26, 25048), (31, 21008), (52, 12524), (62, 10504), (101, 6448), (104, 6262), (124, 5252), (202, 3224), (208, 3131), (248, 2626), (403, 1616), (404, 1612), (496, 1313), (806, 808)]