81626470

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1$

素因数の和:269

約数の個数: 64

約数和(自身を含む): 161441280

約数和(自身を除く): 79814810

約数列:

[1, 2, 5, 10, 19, 38, 43, 86, 95, 97, 103, 190, 194, 206, 215, 430, 485, 515, 817, 970, 1030, 1634, 1843, 1957, 3686, 3914, 4085, 4171, 4429, 8170, 8342, 8858, 9215, 9785, 9991, 18430, 19570, 19982, 20855, 22145, 41710, 44290, 49955, 79249, 84151, 99910, 158498, 168302, 189829, 379658, 396245, 420755, 429613, 792490, 841510, 859226, 949145, 1898290, 2148065, 4296130, 8162647, 16325294, 40813235, 81626470]

約数ペア:

[(1, 81626470), (2, 40813235), (5, 16325294), (10, 8162647), (19, 4296130), (38, 2148065), (43, 1898290), (86, 949145), (95, 859226), (97, 841510), (103, 792490), (190, 429613), (194, 420755), (206, 396245), (215, 379658), (430, 189829), (485, 168302), (515, 158498), (817, 99910), (970, 84151), (1030, 79249), (1634, 49955), (1843, 44290), (1957, 41710), (3686, 22145), (3914, 20855), (4085, 19982), (4171, 19570), (4429, 18430), (8170, 9991), (8342, 9785), (8858, 9215)]