28821280

素因数分解:

$2^5\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2953}}^1$

素因数の和:3029

約数の個数: 48

約数和(自身を含む): 69229944

約数和(自身を除く): 40408664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 80, 122, 160, 244, 305, 488, 610, 976, 1220, 1952, 2440, 2953, 4880, 5906, 9760, 11812, 14765, 23624, 29530, 47248, 59060, 94496, 118120, 180133, 236240, 360266, 472480, 720532, 900665, 1441064, 1801330, 2882128, 3602660, 5764256, 7205320, 14410640, 28821280]

約数ペア:

[(1, 28821280), (2, 14410640), (4, 7205320), (5, 5764256), (8, 3602660), (10, 2882128), (16, 1801330), (20, 1441064), (32, 900665), (40, 720532), (61, 472480), (80, 360266), (122, 236240), (160, 180133), (244, 118120), (305, 94496), (488, 59060), (610, 47248), (976, 29530), (1220, 23624), (1952, 14765), (2440, 11812), (2953, 9760), (4880, 5906)]