198961280

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{499}}^1$

素因数の和:614

約数の個数: 128

約数和(自身を含む): 550800000

約数和(自身を除く): 351838720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 89, 112, 128, 140, 160, 178, 224, 280, 320, 356, 445, 448, 499, 560, 623, 640, 712, 890, 896, 998, 1120, 1246, 1424, 1780, 1996, 2240, 2492, 2495, 2848, 3115, 3493, 3560, 3992, 4480, 4984, 4990, 5696, 6230, 6986, 7120, 7984, 9968, 9980, 11392, 12460, 13972, 14240, 15968, 17465, 19936, 19960, 24920, 27944, 28480, 31936, 34930, 39872, 39920, 44411, 49840, 55888, 56960, 63872, 69860, 79744, 79840, 88822, 99680, 111776, 139720, 159680, 177644, 199360, 222055, 223552, 279440, 310877, 319360, 355288, 398720, 444110, 447104, 558880, 621754, 710576, 888220, 1117760, 1243508, 1421152, 1554385, 1776440, 2235520, 2487016, 2842304, 3108770, 3552880, 4974032, 5684608, 6217540, 7105760, 9948064, 12435080, 14211520, 19896128, 24870160, 28423040, 39792256, 49740320, 99480640, 198961280]

約数ペア:

[(1, 198961280), (2, 99480640), (4, 49740320), (5, 39792256), (7, 28423040), (8, 24870160), (10, 19896128), (14, 14211520), (16, 12435080), (20, 9948064), (28, 7105760), (32, 6217540), (35, 5684608), (40, 4974032), (56, 3552880), (64, 3108770), (70, 2842304), (80, 2487016), (89, 2235520), (112, 1776440), (128, 1554385), (140, 1421152), (160, 1243508), (178, 1117760), (224, 888220), (280, 710576), (320, 621754), (356, 558880), (445, 447104), (448, 444110), (499, 398720), (560, 355288), (623, 319360), (640, 310877), (712, 279440), (890, 223552), (896, 222055), (998, 199360), (1120, 177644), (1246, 159680), (1424, 139720), (1780, 111776), (1996, 99680), (2240, 88822), (2492, 79840), (2495, 79744), (2848, 69860), (3115, 63872), (3493, 56960), (3560, 55888), (3992, 49840), (4480, 44411), (4984, 39920), (4990, 39872), (5696, 34930), (6230, 31936), (6986, 28480), (7120, 27944), (7984, 24920), (9968, 19960), (9980, 19936), (11392, 17465), (12460, 15968), (13972, 14240)]