20814360

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{349}}^1$

素因数の和:441

約数の個数: 128

約数和(自身を含む): 72576000

約数和(自身を除く): 51761640

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 71, 84, 105, 120, 140, 142, 168, 210, 213, 280, 284, 349, 355, 420, 426, 497, 568, 698, 710, 840, 852, 994, 1047, 1065, 1396, 1420, 1491, 1704, 1745, 1988, 2094, 2130, 2443, 2485, 2792, 2840, 2982, 3490, 3976, 4188, 4260, 4886, 4970, 5235, 5964, 6980, 7329, 7455, 8376, 8520, 9772, 9940, 10470, 11928, 12215, 13960, 14658, 14910, 19544, 19880, 20940, 24430, 24779, 29316, 29820, 36645, 41880, 48860, 49558, 58632, 59640, 73290, 74337, 97720, 99116, 123895, 146580, 148674, 173453, 198232, 247790, 293160, 297348, 346906, 371685, 495580, 520359, 594696, 693812, 743370, 867265, 991160, 1040718, 1387624, 1486740, 1734530, 2081436, 2601795, 2973480, 3469060, 4162872, 5203590, 6938120, 10407180, 20814360]

約数ペア:

[(1, 20814360), (2, 10407180), (3, 6938120), (4, 5203590), (5, 4162872), (6, 3469060), (7, 2973480), (8, 2601795), (10, 2081436), (12, 1734530), (14, 1486740), (15, 1387624), (20, 1040718), (21, 991160), (24, 867265), (28, 743370), (30, 693812), (35, 594696), (40, 520359), (42, 495580), (56, 371685), (60, 346906), (70, 297348), (71, 293160), (84, 247790), (105, 198232), (120, 173453), (140, 148674), (142, 146580), (168, 123895), (210, 99116), (213, 97720), (280, 74337), (284, 73290), (349, 59640), (355, 58632), (420, 49558), (426, 48860), (497, 41880), (568, 36645), (698, 29820), (710, 29316), (840, 24779), (852, 24430), (994, 20940), (1047, 19880), (1065, 19544), (1396, 14910), (1420, 14658), (1491, 13960), (1704, 12215), (1745, 11928), (1988, 10470), (2094, 9940), (2130, 9772), (2443, 8520), (2485, 8376), (2792, 7455), (2840, 7329), (2982, 6980), (3490, 5964), (3976, 5235), (4188, 4970), (4260, 4886)]