81839950

素因数分解:

$2^1\times 5^2\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{347}}^1$

素因数の和:501

約数の個数: 48

約数和(自身を含む): 157289040

約数和(自身を除く): 75449090

約数列:

[1, 2, 5, 10, 25, 50, 53, 89, 106, 178, 265, 347, 445, 530, 694, 890, 1325, 1735, 2225, 2650, 3470, 4450, 4717, 8675, 9434, 17350, 18391, 23585, 30883, 36782, 47170, 61766, 91955, 117925, 154415, 183910, 235850, 308830, 459775, 772075, 919550, 1544150, 1636799, 3273598, 8183995, 16367990, 40919975, 81839950]

約数ペア:

[(1, 81839950), (2, 40919975), (5, 16367990), (10, 8183995), (25, 3273598), (50, 1636799), (53, 1544150), (89, 919550), (106, 772075), (178, 459775), (265, 308830), (347, 235850), (445, 183910), (530, 154415), (694, 117925), (890, 91955), (1325, 61766), (1735, 47170), (2225, 36782), (2650, 30883), (3470, 23585), (4450, 18391), (4717, 17350), (8675, 9434)]