20224546960

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{809}}^1\times {\mathrm{16447}}^1$

素因数の和:17288

約数の個数: 80

約数和(自身を含む): 49561113600

約数和(自身を除く): 29336566640

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 809, 1520, 1618, 3236, 4045, 6472, 8090, 12944, 15371, 16180, 16447, 30742, 32360, 32894, 61484, 64720, 65788, 76855, 82235, 122968, 131576, 153710, 164470, 245936, 263152, 307420, 312493, 328940, 614840, 624986, 657880, 1229680, 1249972, 1315760, 1562465, 2499944, 3124930, 4999888, 6249860, 12499720, 13305623, 24999440, 26611246, 53222492, 66528115, 106444984, 133056230, 212889968, 252806837, 266112460, 505613674, 532224920, 1011227348, 1064449840, 1264034185, 2022454696, 2528068370, 4044909392, 5056136740, 10112273480, 20224546960]

約数ペア:

[(1, 20224546960), (2, 10112273480), (4, 5056136740), (5, 4044909392), (8, 2528068370), (10, 2022454696), (16, 1264034185), (19, 1064449840), (20, 1011227348), (38, 532224920), (40, 505613674), (76, 266112460), (80, 252806837), (95, 212889968), (152, 133056230), (190, 106444984), (304, 66528115), (380, 53222492), (760, 26611246), (809, 24999440), (1520, 13305623), (1618, 12499720), (3236, 6249860), (4045, 4999888), (6472, 3124930), (8090, 2499944), (12944, 1562465), (15371, 1315760), (16180, 1249972), (16447, 1229680), (30742, 657880), (32360, 624986), (32894, 614840), (61484, 328940), (64720, 312493), (65788, 307420), (76855, 263152), (82235, 245936), (122968, 164470), (131576, 153710)]