78138900

素因数分解:

$2^2\times 3^2\times 5^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1$

素因数の和:263

約数の個数: 216

約数和(自身を含む): 285259520

約数和(自身を除く): 207120620

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 25, 28, 30, 35, 36, 42, 45, 50, 60, 63, 70, 75, 79, 84, 90, 100, 105, 126, 140, 150, 157, 158, 175, 180, 210, 225, 237, 252, 300, 314, 315, 316, 350, 395, 420, 450, 471, 474, 525, 553, 628, 630, 700, 711, 785, 790, 900, 942, 948, 1050, 1099, 1106, 1185, 1260, 1413, 1422, 1570, 1575, 1580, 1659, 1884, 1975, 2100, 2198, 2212, 2355, 2370, 2765, 2826, 2844, 3140, 3150, 3297, 3318, 3555, 3925, 3950, 4396, 4710, 4740, 4977, 5495, 5530, 5652, 5925, 6300, 6594, 6636, 7065, 7110, 7850, 7900, 8295, 9420, 9891, 9954, 10990, 11060, 11775, 11850, 12403, 13188, 13825, 14130, 14220, 15700, 16485, 16590, 17775, 19782, 19908, 21980, 23550, 23700, 24806, 24885, 27475, 27650, 28260, 32970, 33180, 35325, 35550, 37209, 39564, 41475, 47100, 49455, 49612, 49770, 54950, 55300, 62015, 65940, 70650, 71100, 74418, 82425, 82950, 86821, 98910, 99540, 109900, 111627, 124030, 124425, 141300, 148836, 164850, 165900, 173642, 186045, 197820, 223254, 247275, 248060, 248850, 260463, 310075, 329700, 347284, 372090, 434105, 446508, 494550, 497700, 520926, 558135, 620150, 744180, 781389, 868210, 930225, 989100, 1041852, 1116270, 1240300, 1302315, 1562778, 1736420, 1860450, 2170525, 2232540, 2604630, 2790675, 3125556, 3720900, 3906945, 4341050, 5209260, 5581350, 6511575, 7813890, 8682100, 11162700, 13023150, 15627780, 19534725, 26046300, 39069450, 78138900]

約数ペア:

[(1, 78138900), (2, 39069450), (3, 26046300), (4, 19534725), (5, 15627780), (6, 13023150), (7, 11162700), (9, 8682100), (10, 7813890), (12, 6511575), (14, 5581350), (15, 5209260), (18, 4341050), (20, 3906945), (21, 3720900), (25, 3125556), (28, 2790675), (30, 2604630), (35, 2232540), (36, 2170525), (42, 1860450), (45, 1736420), (50, 1562778), (60, 1302315), (63, 1240300), (70, 1116270), (75, 1041852), (79, 989100), (84, 930225), (90, 868210), (100, 781389), (105, 744180), (126, 620150), (140, 558135), (150, 520926), (157, 497700), (158, 494550), (175, 446508), (180, 434105), (210, 372090), (225, 347284), (237, 329700), (252, 310075), (300, 260463), (314, 248850), (315, 248060), (316, 247275), (350, 223254), (395, 197820), (420, 186045), (450, 173642), (471, 165900), (474, 164850), (525, 148836), (553, 141300), (628, 124425), (630, 124030), (700, 111627), (711, 109900), (785, 99540), (790, 98910), (900, 86821), (942, 82950), (948, 82425), (1050, 74418), (1099, 71100), (1106, 70650), (1185, 65940), (1260, 62015), (1413, 55300), (1422, 54950), (1570, 49770), (1575, 49612), (1580, 49455), (1659, 47100), (1884, 41475), (1975, 39564), (2100, 37209), (2198, 35550), (2212, 35325), (2355, 33180), (2370, 32970), (2765, 28260), (2826, 27650), (2844, 27475), (3140, 24885), (3150, 24806), (3297, 23700), (3318, 23550), (3555, 21980), (3925, 19908), (3950, 19782), (4396, 17775), (4710, 16590), (4740, 16485), (4977, 15700), (5495, 14220), (5530, 14130), (5652, 13825), (5925, 13188), (6300, 12403), (6594, 11850), (6636, 11775), (7065, 11060), (7110, 10990), (7850, 9954), (7900, 9891), (8295, 9420)]