78447200

素因数分解:

$2^5\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{397}}^1$

素因数の和:449

約数の個数: 144

約数和(自身を含む): 217642320

約数和(自身を除く): 139195120

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 25, 26, 32, 38, 40, 50, 52, 65, 76, 80, 95, 100, 104, 130, 152, 160, 190, 200, 208, 247, 260, 304, 325, 380, 397, 400, 416, 475, 494, 520, 608, 650, 760, 794, 800, 950, 988, 1040, 1235, 1300, 1520, 1588, 1900, 1976, 1985, 2080, 2470, 2600, 3040, 3176, 3800, 3952, 3970, 4940, 5161, 5200, 6175, 6352, 7543, 7600, 7904, 7940, 9880, 9925, 10322, 10400, 12350, 12704, 15086, 15200, 15880, 19760, 19850, 20644, 24700, 25805, 30172, 31760, 37715, 39520, 39700, 41288, 49400, 51610, 60344, 63520, 75430, 79400, 82576, 98059, 98800, 103220, 120688, 129025, 150860, 158800, 165152, 188575, 196118, 197600, 206440, 241376, 258050, 301720, 317600, 377150, 392236, 412880, 490295, 516100, 603440, 754300, 784472, 825760, 980590, 1032200, 1206880, 1508600, 1568944, 1961180, 2064400, 2451475, 3017200, 3137888, 3922360, 4128800, 4902950, 6034400, 7844720, 9805900, 15689440, 19611800, 39223600, 78447200]

約数ペア:

[(1, 78447200), (2, 39223600), (4, 19611800), (5, 15689440), (8, 9805900), (10, 7844720), (13, 6034400), (16, 4902950), (19, 4128800), (20, 3922360), (25, 3137888), (26, 3017200), (32, 2451475), (38, 2064400), (40, 1961180), (50, 1568944), (52, 1508600), (65, 1206880), (76, 1032200), (80, 980590), (95, 825760), (100, 784472), (104, 754300), (130, 603440), (152, 516100), (160, 490295), (190, 412880), (200, 392236), (208, 377150), (247, 317600), (260, 301720), (304, 258050), (325, 241376), (380, 206440), (397, 197600), (400, 196118), (416, 188575), (475, 165152), (494, 158800), (520, 150860), (608, 129025), (650, 120688), (760, 103220), (794, 98800), (800, 98059), (950, 82576), (988, 79400), (1040, 75430), (1235, 63520), (1300, 60344), (1520, 51610), (1588, 49400), (1900, 41288), (1976, 39700), (1985, 39520), (2080, 37715), (2470, 31760), (2600, 30172), (3040, 25805), (3176, 24700), (3800, 20644), (3952, 19850), (3970, 19760), (4940, 15880), (5161, 15200), (5200, 15086), (6175, 12704), (6352, 12350), (7543, 10400), (7600, 10322), (7904, 9925), (7940, 9880)]