81027960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{51941}}^1$

素因数の和:51968

約数の個数: 64

約数和(自身を含む): 261787680

約数和(自身を除く): 180759720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 51941, 103882, 155823, 207764, 259705, 311646, 415528, 519410, 623292, 675233, 779115, 1038820, 1246584, 1350466, 1558230, 2025699, 2077640, 2700932, 3116460, 3376165, 4051398, 5401864, 6232920, 6752330, 8102796, 10128495, 13504660, 16205592, 20256990, 27009320, 40513980, 81027960]

約数ペア:

[(1, 81027960), (2, 40513980), (3, 27009320), (4, 20256990), (5, 16205592), (6, 13504660), (8, 10128495), (10, 8102796), (12, 6752330), (13, 6232920), (15, 5401864), (20, 4051398), (24, 3376165), (26, 3116460), (30, 2700932), (39, 2077640), (40, 2025699), (52, 1558230), (60, 1350466), (65, 1246584), (78, 1038820), (104, 779115), (120, 675233), (130, 623292), (156, 519410), (195, 415528), (260, 311646), (312, 259705), (390, 207764), (520, 155823), (780, 103882), (1560, 51941)]