49621780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{53}}^1\times {\mathrm{277}}^1$

素因数の和:365

約数の個数: 72

約数和(自身を含む): 115382232

約数和(自身を除く): 65760452

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 53, 65, 106, 130, 169, 212, 260, 265, 277, 338, 530, 554, 676, 689, 845, 1060, 1108, 1378, 1385, 1690, 2756, 2770, 3380, 3445, 3601, 5540, 6890, 7202, 8957, 13780, 14404, 14681, 17914, 18005, 29362, 35828, 36010, 44785, 46813, 58724, 72020, 73405, 89570, 93626, 146810, 179140, 187252, 190853, 234065, 293620, 381706, 468130, 763412, 936260, 954265, 1908530, 2481089, 3817060, 4962178, 9924356, 12405445, 24810890, 49621780]

約数ペア:

[(1, 49621780), (2, 24810890), (4, 12405445), (5, 9924356), (10, 4962178), (13, 3817060), (20, 2481089), (26, 1908530), (52, 954265), (53, 936260), (65, 763412), (106, 468130), (130, 381706), (169, 293620), (212, 234065), (260, 190853), (265, 187252), (277, 179140), (338, 146810), (530, 93626), (554, 89570), (676, 73405), (689, 72020), (845, 58724), (1060, 46813), (1108, 44785), (1378, 36010), (1385, 35828), (1690, 29362), (2756, 18005), (2770, 17914), (3380, 14681), (3445, 14404), (3601, 13780), (5540, 8957), (6890, 7202)]