19396940

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{631}}^1$

素因数の和:722

約数の個数: 48

約数和(自身を含む): 43001280

約数和(自身を除く): 23604340

約数列:

[1, 2, 4, 5, 10, 20, 29, 53, 58, 106, 116, 145, 212, 265, 290, 530, 580, 631, 1060, 1262, 1537, 2524, 3074, 3155, 6148, 6310, 7685, 12620, 15370, 18299, 30740, 33443, 36598, 66886, 73196, 91495, 133772, 167215, 182990, 334430, 365980, 668860, 969847, 1939694, 3879388, 4849235, 9698470, 19396940]

約数ペア:

[(1, 19396940), (2, 9698470), (4, 4849235), (5, 3879388), (10, 1939694), (20, 969847), (29, 668860), (53, 365980), (58, 334430), (106, 182990), (116, 167215), (145, 133772), (212, 91495), (265, 73196), (290, 66886), (530, 36598), (580, 33443), (631, 30740), (1060, 18299), (1262, 15370), (1537, 12620), (2524, 7685), (3074, 6310), (3155, 6148)]