686385788

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{157}}^1\times {\mathrm{1483}}^1$

素因数の和:1722

約数の個数: 48

約数和(自身を含む): 1339304064

約数和(自身を除く): 652918276

約数列:

[1, 2, 4, 11, 22, 44, 67, 134, 157, 268, 314, 628, 737, 1474, 1483, 1727, 2948, 2966, 3454, 5932, 6908, 10519, 16313, 21038, 32626, 42076, 65252, 99361, 115709, 198722, 231418, 232831, 397444, 462836, 465662, 931324, 1092971, 2185942, 2561141, 4371884, 5122282, 10244564, 15599677, 31199354, 62398708, 171596447, 343192894, 686385788]

約数ペア:

[(1, 686385788), (2, 343192894), (4, 171596447), (11, 62398708), (22, 31199354), (44, 15599677), (67, 10244564), (134, 5122282), (157, 4371884), (268, 2561141), (314, 2185942), (628, 1092971), (737, 931324), (1474, 465662), (1483, 462836), (1727, 397444), (2948, 232831), (2966, 231418), (3454, 198722), (5932, 115709), (6908, 99361), (10519, 65252), (16313, 42076), (21038, 32626)]