1393420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{269}}^1$

素因数の和:322

約数の個数: 48

約数和(自身を含む): 3447360

約数和(自身を除く): 2053940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 70, 74, 140, 148, 185, 259, 269, 370, 518, 538, 740, 1036, 1076, 1295, 1345, 1883, 2590, 2690, 3766, 5180, 5380, 7532, 9415, 9953, 18830, 19906, 37660, 39812, 49765, 69671, 99530, 139342, 199060, 278684, 348355, 696710, 1393420]

約数ペア:

[(1, 1393420), (2, 696710), (4, 348355), (5, 278684), (7, 199060), (10, 139342), (14, 99530), (20, 69671), (28, 49765), (35, 39812), (37, 37660), (70, 19906), (74, 18830), (140, 9953), (148, 9415), (185, 7532), (259, 5380), (269, 5180), (370, 3766), (518, 2690), (538, 2590), (740, 1883), (1036, 1345), (1076, 1295)]