19706240

素因数分解:

$2^7\times 5^1\times {\mathrm{41}}^1\times {\mathrm{751}}^1$

素因数の和:811

約数の個数: 64

約数和(自身を含む): 48323520

約数和(自身を除く): 28617280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 128, 160, 164, 205, 320, 328, 410, 640, 656, 751, 820, 1312, 1502, 1640, 2624, 3004, 3280, 3755, 5248, 6008, 6560, 7510, 12016, 13120, 15020, 24032, 26240, 30040, 30791, 48064, 60080, 61582, 96128, 120160, 123164, 153955, 240320, 246328, 307910, 480640, 492656, 615820, 985312, 1231640, 1970624, 2463280, 3941248, 4926560, 9853120, 19706240]

約数ペア:

[(1, 19706240), (2, 9853120), (4, 4926560), (5, 3941248), (8, 2463280), (10, 1970624), (16, 1231640), (20, 985312), (32, 615820), (40, 492656), (41, 480640), (64, 307910), (80, 246328), (82, 240320), (128, 153955), (160, 123164), (164, 120160), (205, 96128), (320, 61582), (328, 60080), (410, 48064), (640, 30791), (656, 30040), (751, 26240), (820, 24032), (1312, 15020), (1502, 13120), (1640, 12016), (2624, 7510), (3004, 6560), (3280, 6008), (3755, 5248)]