20369490

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{557}}^1$

素因数の和:643

約数の個数: 64

約数和(自身を含む): 52068096

約数和(自身を除く): 31698606

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 53, 69, 106, 115, 138, 159, 230, 265, 318, 345, 530, 557, 690, 795, 1114, 1219, 1590, 1671, 2438, 2785, 3342, 3657, 5570, 6095, 7314, 8355, 12190, 12811, 16710, 18285, 25622, 29521, 36570, 38433, 59042, 64055, 76866, 88563, 128110, 147605, 177126, 192165, 295210, 384330, 442815, 678983, 885630, 1357966, 2036949, 3394915, 4073898, 6789830, 10184745, 20369490]

約数ペア:

[(1, 20369490), (2, 10184745), (3, 6789830), (5, 4073898), (6, 3394915), (10, 2036949), (15, 1357966), (23, 885630), (30, 678983), (46, 442815), (53, 384330), (69, 295210), (106, 192165), (115, 177126), (138, 147605), (159, 128110), (230, 88563), (265, 76866), (318, 64055), (345, 59042), (530, 38433), (557, 36570), (690, 29521), (795, 25622), (1114, 18285), (1219, 16710), (1590, 12811), (1671, 12190), (2438, 8355), (2785, 7314), (3342, 6095), (3657, 5570)]