20501640

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{463}}^1$

素因数の和:524

約数の個数: 128

約数和(自身を含む): 70156800

約数和(自身を除く): 49655160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 41, 45, 54, 60, 72, 82, 90, 108, 120, 123, 135, 164, 180, 205, 216, 246, 270, 328, 360, 369, 410, 463, 492, 540, 615, 738, 820, 926, 984, 1080, 1107, 1230, 1389, 1476, 1640, 1845, 1852, 2214, 2315, 2460, 2778, 2952, 3690, 3704, 4167, 4428, 4630, 4920, 5535, 5556, 6945, 7380, 8334, 8856, 9260, 11070, 11112, 12501, 13890, 14760, 16668, 18520, 18983, 20835, 22140, 25002, 27780, 33336, 37966, 41670, 44280, 50004, 55560, 56949, 62505, 75932, 83340, 94915, 100008, 113898, 125010, 151864, 166680, 170847, 189830, 227796, 250020, 284745, 341694, 379660, 455592, 500040, 512541, 569490, 683388, 759320, 854235, 1025082, 1138980, 1366776, 1708470, 2050164, 2277960, 2562705, 3416940, 4100328, 5125410, 6833880, 10250820, 20501640]

約数ペア:

[(1, 20501640), (2, 10250820), (3, 6833880), (4, 5125410), (5, 4100328), (6, 3416940), (8, 2562705), (9, 2277960), (10, 2050164), (12, 1708470), (15, 1366776), (18, 1138980), (20, 1025082), (24, 854235), (27, 759320), (30, 683388), (36, 569490), (40, 512541), (41, 500040), (45, 455592), (54, 379660), (60, 341694), (72, 284745), (82, 250020), (90, 227796), (108, 189830), (120, 170847), (123, 166680), (135, 151864), (164, 125010), (180, 113898), (205, 100008), (216, 94915), (246, 83340), (270, 75932), (328, 62505), (360, 56949), (369, 55560), (410, 50004), (463, 44280), (492, 41670), (540, 37966), (615, 33336), (738, 27780), (820, 25002), (926, 22140), (984, 20835), (1080, 18983), (1107, 18520), (1230, 16668), (1389, 14760), (1476, 13890), (1640, 12501), (1845, 11112), (1852, 11070), (2214, 9260), (2315, 8856), (2460, 8334), (2778, 7380), (2952, 6945), (3690, 5556), (3704, 5535), (4167, 4920), (4428, 4630)]