19498700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{283}}^1$

素因数の和:363

約数の個数: 72

約数和(自身を含む): 46590768

約数和(自身を除く): 27092068

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 53, 65, 100, 106, 130, 212, 260, 265, 283, 325, 530, 566, 650, 689, 1060, 1132, 1300, 1325, 1378, 1415, 2650, 2756, 2830, 3445, 3679, 5300, 5660, 6890, 7075, 7358, 13780, 14150, 14716, 14999, 17225, 18395, 28300, 29998, 34450, 36790, 59996, 68900, 73580, 74995, 91975, 149990, 183950, 194987, 299980, 367900, 374975, 389974, 749950, 779948, 974935, 1499900, 1949870, 3899740, 4874675, 9749350, 19498700]

約数ペア:

[(1, 19498700), (2, 9749350), (4, 4874675), (5, 3899740), (10, 1949870), (13, 1499900), (20, 974935), (25, 779948), (26, 749950), (50, 389974), (52, 374975), (53, 367900), (65, 299980), (100, 194987), (106, 183950), (130, 149990), (212, 91975), (260, 74995), (265, 73580), (283, 68900), (325, 59996), (530, 36790), (566, 34450), (650, 29998), (689, 28300), (1060, 18395), (1132, 17225), (1300, 14999), (1325, 14716), (1378, 14150), (1415, 13780), (2650, 7358), (2756, 7075), (2830, 6890), (3445, 5660), (3679, 5300)]