123281880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{389}}^1$

素因数の和:561

約数の個数: 128

約数和(自身を含む): 393120000

約数和(自身を除く): 269838120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 95, 114, 120, 139, 152, 190, 228, 278, 285, 380, 389, 417, 456, 556, 570, 695, 760, 778, 834, 1112, 1140, 1167, 1390, 1556, 1668, 1945, 2085, 2280, 2334, 2641, 2780, 3112, 3336, 3890, 4170, 4668, 5282, 5560, 5835, 7391, 7780, 7923, 8340, 9336, 10564, 11670, 13205, 14782, 15560, 15846, 16680, 21128, 22173, 23340, 26410, 29564, 31692, 36955, 39615, 44346, 46680, 52820, 54071, 59128, 63384, 73910, 79230, 88692, 105640, 108142, 110865, 147820, 158460, 162213, 177384, 216284, 221730, 270355, 295640, 316920, 324426, 432568, 443460, 540710, 648852, 811065, 886920, 1027349, 1081420, 1297704, 1622130, 2054698, 2162840, 3082047, 3244260, 4109396, 5136745, 6164094, 6488520, 8218792, 10273490, 12328188, 15410235, 20546980, 24656376, 30820470, 41093960, 61640940, 123281880]

約数ペア:

[(1, 123281880), (2, 61640940), (3, 41093960), (4, 30820470), (5, 24656376), (6, 20546980), (8, 15410235), (10, 12328188), (12, 10273490), (15, 8218792), (19, 6488520), (20, 6164094), (24, 5136745), (30, 4109396), (38, 3244260), (40, 3082047), (57, 2162840), (60, 2054698), (76, 1622130), (95, 1297704), (114, 1081420), (120, 1027349), (139, 886920), (152, 811065), (190, 648852), (228, 540710), (278, 443460), (285, 432568), (380, 324426), (389, 316920), (417, 295640), (456, 270355), (556, 221730), (570, 216284), (695, 177384), (760, 162213), (778, 158460), (834, 147820), (1112, 110865), (1140, 108142), (1167, 105640), (1390, 88692), (1556, 79230), (1668, 73910), (1945, 63384), (2085, 59128), (2280, 54071), (2334, 52820), (2641, 46680), (2780, 44346), (3112, 39615), (3336, 36955), (3890, 31692), (4170, 29564), (4668, 26410), (5282, 23340), (5560, 22173), (5835, 21128), (7391, 16680), (7780, 15846), (7923, 15560), (8340, 14782), (9336, 13205), (10564, 11670)]