280864640

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{883}}^1$

素因数の和:980

約数の個数: 128

約数和(自身を含む): 779051520

約数和(自身を除く): 498186880

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, 883, 896, 994, 1120, 1136, 1420, 1766, 1988, 2240, 2272, 2485, 2840, 3532, 3976, 4415, 4480, 4544, 4970, 5680, 6181, 7064, 7952, 8830, 9088, 9940, 11360, 12362, 14128, 15904, 17660, 19880, 22720, 24724, 28256, 30905, 31808, 35320, 39760, 45440, 49448, 56512, 61810, 62693, 63616, 70640, 79520, 98896, 113024, 123620, 125386, 141280, 159040, 197792, 247240, 250772, 282560, 313465, 318080, 395584, 438851, 494480, 501544, 565120, 626930, 791168, 877702, 988960, 1003088, 1253860, 1755404, 1977920, 2006176, 2194255, 2507720, 3510808, 3955840, 4012352, 4388510, 5015440, 7021616, 8024704, 8777020, 10030880, 14043232, 17554040, 20061760, 28086464, 35108080, 40123520, 56172928, 70216160, 140432320, 280864640]

約数ペア:

[(1, 280864640), (2, 140432320), (4, 70216160), (5, 56172928), (7, 40123520), (8, 35108080), (10, 28086464), (14, 20061760), (16, 17554040), (20, 14043232), (28, 10030880), (32, 8777020), (35, 8024704), (40, 7021616), (56, 5015440), (64, 4388510), (70, 4012352), (71, 3955840), (80, 3510808), (112, 2507720), (128, 2194255), (140, 2006176), (142, 1977920), (160, 1755404), (224, 1253860), (280, 1003088), (284, 988960), (320, 877702), (355, 791168), (448, 626930), (497, 565120), (560, 501544), (568, 494480), (640, 438851), (710, 395584), (883, 318080), (896, 313465), (994, 282560), (1120, 250772), (1136, 247240), (1420, 197792), (1766, 159040), (1988, 141280), (2240, 125386), (2272, 123620), (2485, 113024), (2840, 98896), (3532, 79520), (3976, 70640), (4415, 63616), (4480, 62693), (4544, 61810), (4970, 56512), (5680, 49448), (6181, 45440), (7064, 39760), (7952, 35320), (8830, 31808), (9088, 30905), (9940, 28256), (11360, 24724), (12362, 22720), (14128, 19880), (15904, 17660)]