81506600

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{8317}}^1$

素因数の和:8347

約数の個数: 72

約数和(自身を含む): 220468590

約数和(自身を除く): 138961990

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 49, 50, 56, 70, 98, 100, 140, 175, 196, 200, 245, 280, 350, 392, 490, 700, 980, 1225, 1400, 1960, 2450, 4900, 8317, 9800, 16634, 33268, 41585, 58219, 66536, 83170, 116438, 166340, 207925, 232876, 291095, 332680, 407533, 415850, 465752, 582190, 815066, 831700, 1164380, 1455475, 1630132, 1663400, 2037665, 2328760, 2910950, 3260264, 4075330, 5821900, 8150660, 10188325, 11643800, 16301320, 20376650, 40753300, 81506600]

約数ペア:

[(1, 81506600), (2, 40753300), (4, 20376650), (5, 16301320), (7, 11643800), (8, 10188325), (10, 8150660), (14, 5821900), (20, 4075330), (25, 3260264), (28, 2910950), (35, 2328760), (40, 2037665), (49, 1663400), (50, 1630132), (56, 1455475), (70, 1164380), (98, 831700), (100, 815066), (140, 582190), (175, 465752), (196, 415850), (200, 407533), (245, 332680), (280, 291095), (350, 232876), (392, 207925), (490, 166340), (700, 116438), (980, 83170), (1225, 66536), (1400, 58219), (1960, 41585), (2450, 33268), (4900, 16634), (8317, 9800)]