247390720

素因数分解:

$2^9\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2357}}^1$

素因数の和:2421

約数の個数: 80

約数和(自身を含む): 607882968

約数和(自身を除く): 360492248

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 128, 160, 164, 205, 256, 320, 328, 410, 512, 640, 656, 820, 1280, 1312, 1640, 2357, 2560, 2624, 3280, 4714, 5248, 6560, 9428, 10496, 11785, 13120, 18856, 20992, 23570, 26240, 37712, 47140, 52480, 75424, 94280, 96637, 104960, 150848, 188560, 193274, 301696, 377120, 386548, 483185, 603392, 754240, 773096, 966370, 1206784, 1508480, 1546192, 1932740, 3016960, 3092384, 3865480, 6033920, 6184768, 7730960, 12369536, 15461920, 24739072, 30923840, 49478144, 61847680, 123695360, 247390720]

約数ペア:

[(1, 247390720), (2, 123695360), (4, 61847680), (5, 49478144), (8, 30923840), (10, 24739072), (16, 15461920), (20, 12369536), (32, 7730960), (40, 6184768), (41, 6033920), (64, 3865480), (80, 3092384), (82, 3016960), (128, 1932740), (160, 1546192), (164, 1508480), (205, 1206784), (256, 966370), (320, 773096), (328, 754240), (410, 603392), (512, 483185), (640, 386548), (656, 377120), (820, 301696), (1280, 193274), (1312, 188560), (1640, 150848), (2357, 104960), (2560, 96637), (2624, 94280), (3280, 75424), (4714, 52480), (5248, 47140), (6560, 37712), (9428, 26240), (10496, 23570), (11785, 20992), (13120, 18856)]