178997868

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{347}}^1$

素因数の和:476

約数の個数: 144

約数和(自身を含む): 547223040

約数和(自身を除く): 368225172

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 23, 28, 36, 42, 46, 63, 69, 84, 89, 92, 126, 138, 161, 178, 207, 252, 267, 276, 322, 347, 356, 414, 483, 534, 623, 644, 694, 801, 828, 966, 1041, 1068, 1246, 1388, 1449, 1602, 1869, 1932, 2047, 2082, 2429, 2492, 2898, 3123, 3204, 3738, 4094, 4164, 4858, 5607, 5796, 6141, 6246, 7287, 7476, 7981, 8188, 9716, 11214, 12282, 12492, 14329, 14574, 15962, 18423, 21861, 22428, 23943, 24564, 28658, 29148, 30883, 31924, 36846, 42987, 43722, 47886, 55867, 57316, 61766, 71829, 73692, 85974, 87444, 92649, 95772, 111734, 123532, 128961, 143658, 167601, 171948, 185298, 216181, 223468, 257922, 277947, 287316, 335202, 370596, 432362, 502803, 515844, 555894, 648543, 670404, 710309, 864724, 1005606, 1111788, 1297086, 1420618, 1945629, 2011212, 2130927, 2594172, 2841236, 3891258, 4261854, 4972163, 6392781, 7782516, 8523708, 9944326, 12785562, 14916489, 19888652, 25571124, 29832978, 44749467, 59665956, 89498934, 178997868]

約数ペア:

[(1, 178997868), (2, 89498934), (3, 59665956), (4, 44749467), (6, 29832978), (7, 25571124), (9, 19888652), (12, 14916489), (14, 12785562), (18, 9944326), (21, 8523708), (23, 7782516), (28, 6392781), (36, 4972163), (42, 4261854), (46, 3891258), (63, 2841236), (69, 2594172), (84, 2130927), (89, 2011212), (92, 1945629), (126, 1420618), (138, 1297086), (161, 1111788), (178, 1005606), (207, 864724), (252, 710309), (267, 670404), (276, 648543), (322, 555894), (347, 515844), (356, 502803), (414, 432362), (483, 370596), (534, 335202), (623, 287316), (644, 277947), (694, 257922), (801, 223468), (828, 216181), (966, 185298), (1041, 171948), (1068, 167601), (1246, 143658), (1388, 128961), (1449, 123532), (1602, 111734), (1869, 95772), (1932, 92649), (2047, 87444), (2082, 85974), (2429, 73692), (2492, 71829), (2898, 61766), (3123, 57316), (3204, 55867), (3738, 47886), (4094, 43722), (4164, 42987), (4858, 36846), (5607, 31924), (5796, 30883), (6141, 29148), (6246, 28658), (7287, 24564), (7476, 23943), (7981, 22428), (8188, 21861), (9716, 18423), (11214, 15962), (12282, 14574), (12492, 14329)]