820328320

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{2579}}^1$

素因数の和:2676

約数の個数: 128

約数和(自身を含む): 2273702400

約数和(自身を除く): 1453374080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 71, 80, 112, 128, 140, 142, 160, 224, 280, 284, 320, 355, 448, 497, 560, 568, 640, 710, 896, 994, 1120, 1136, 1420, 1988, 2240, 2272, 2485, 2579, 2840, 3976, 4480, 4544, 4970, 5158, 5680, 7952, 9088, 9940, 10316, 11360, 12895, 15904, 18053, 19880, 20632, 22720, 25790, 31808, 36106, 39760, 41264, 45440, 51580, 63616, 72212, 79520, 82528, 90265, 103160, 144424, 159040, 165056, 180530, 183109, 206320, 288848, 318080, 330112, 361060, 366218, 412640, 577696, 722120, 732436, 825280, 915545, 1155392, 1281763, 1444240, 1464872, 1650560, 1831090, 2310784, 2563526, 2888480, 2929744, 3662180, 5127052, 5776960, 5859488, 6408815, 7324360, 10254104, 11553920, 11718976, 12817630, 14648720, 20508208, 23437952, 25635260, 29297440, 41016416, 51270520, 58594880, 82032832, 102541040, 117189760, 164065664, 205082080, 410164160, 820328320]

約数ペア:

[(1, 820328320), (2, 410164160), (4, 205082080), (5, 164065664), (7, 117189760), (8, 102541040), (10, 82032832), (14, 58594880), (16, 51270520), (20, 41016416), (28, 29297440), (32, 25635260), (35, 23437952), (40, 20508208), (56, 14648720), (64, 12817630), (70, 11718976), (71, 11553920), (80, 10254104), (112, 7324360), (128, 6408815), (140, 5859488), (142, 5776960), (160, 5127052), (224, 3662180), (280, 2929744), (284, 2888480), (320, 2563526), (355, 2310784), (448, 1831090), (497, 1650560), (560, 1464872), (568, 1444240), (640, 1281763), (710, 1155392), (896, 915545), (994, 825280), (1120, 732436), (1136, 722120), (1420, 577696), (1988, 412640), (2240, 366218), (2272, 361060), (2485, 330112), (2579, 318080), (2840, 288848), (3976, 206320), (4480, 183109), (4544, 180530), (4970, 165056), (5158, 159040), (5680, 144424), (7952, 103160), (9088, 90265), (9940, 82528), (10316, 79520), (11360, 72212), (12895, 63616), (15904, 51580), (18053, 45440), (19880, 41264), (20632, 39760), (22720, 36106), (25790, 31808)]