2857788220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{211}}^1\times {\mathrm{1087}}^1$

素因数の和:1403

約数の個数: 96

約数和(自身を含む): 6975037440

約数和(自身を除く): 4117249220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 89, 140, 178, 211, 356, 422, 445, 623, 844, 890, 1055, 1087, 1246, 1477, 1780, 2110, 2174, 2492, 2954, 3115, 4220, 4348, 5435, 5908, 6230, 7385, 7609, 10870, 12460, 14770, 15218, 18779, 21740, 29540, 30436, 37558, 38045, 75116, 76090, 93895, 96743, 131453, 152180, 187790, 193486, 229357, 262906, 375580, 386972, 458714, 483715, 525812, 657265, 677201, 917428, 967430, 1146785, 1314530, 1354402, 1605499, 1934860, 2293570, 2629060, 2708804, 3210998, 3386005, 4587140, 6421996, 6772010, 8027495, 13544020, 16054990, 20412773, 32109980, 40825546, 81651092, 102063865, 142889411, 204127730, 285778822, 408255460, 571557644, 714447055, 1428894110, 2857788220]

約数ペア:

[(1, 2857788220), (2, 1428894110), (4, 714447055), (5, 571557644), (7, 408255460), (10, 285778822), (14, 204127730), (20, 142889411), (28, 102063865), (35, 81651092), (70, 40825546), (89, 32109980), (140, 20412773), (178, 16054990), (211, 13544020), (356, 8027495), (422, 6772010), (445, 6421996), (623, 4587140), (844, 3386005), (890, 3210998), (1055, 2708804), (1087, 2629060), (1246, 2293570), (1477, 1934860), (1780, 1605499), (2110, 1354402), (2174, 1314530), (2492, 1146785), (2954, 967430), (3115, 917428), (4220, 677201), (4348, 657265), (5435, 525812), (5908, 483715), (6230, 458714), (7385, 386972), (7609, 375580), (10870, 262906), (12460, 229357), (14770, 193486), (15218, 187790), (18779, 152180), (21740, 131453), (29540, 96743), (30436, 93895), (37558, 76090), (38045, 75116)]