82880800

素因数分解:

$2^5\times 5^2\times {\mathrm{211}}^1\times {\mathrm{491}}^1$

素因数の和:722

約数の個数: 72

約数和(自身を含む): 203705712

約数和(自身を除く): 120824912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 211, 400, 422, 491, 800, 844, 982, 1055, 1688, 1964, 2110, 2455, 3376, 3928, 4220, 4910, 5275, 6752, 7856, 8440, 9820, 10550, 12275, 15712, 16880, 19640, 21100, 24550, 33760, 39280, 42200, 49100, 78560, 84400, 98200, 103601, 168800, 196400, 207202, 392800, 414404, 518005, 828808, 1036010, 1657616, 2072020, 2590025, 3315232, 4144040, 5180050, 8288080, 10360100, 16576160, 20720200, 41440400, 82880800]

約数ペア:

[(1, 82880800), (2, 41440400), (4, 20720200), (5, 16576160), (8, 10360100), (10, 8288080), (16, 5180050), (20, 4144040), (25, 3315232), (32, 2590025), (40, 2072020), (50, 1657616), (80, 1036010), (100, 828808), (160, 518005), (200, 414404), (211, 392800), (400, 207202), (422, 196400), (491, 168800), (800, 103601), (844, 98200), (982, 84400), (1055, 78560), (1688, 49100), (1964, 42200), (2110, 39280), (2455, 33760), (3376, 24550), (3928, 21100), (4220, 19640), (4910, 16880), (5275, 15712), (6752, 12275), (7856, 10550), (8440, 9820)]