399290540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{461}}^1$

素因数の和:639

約数の個数: 96

約数和(自身を含む): 953745408

約数和(自身を除く): 554454868

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 124, 127, 155, 220, 254, 310, 341, 461, 508, 620, 635, 682, 922, 1270, 1364, 1397, 1705, 1844, 2305, 2540, 2794, 3410, 3937, 4610, 5071, 5588, 6820, 6985, 7874, 9220, 10142, 13970, 14291, 15748, 19685, 20284, 25355, 27940, 28582, 39370, 43307, 50710, 57164, 58547, 71455, 78740, 86614, 101420, 117094, 142910, 157201, 173228, 216535, 234188, 285820, 292735, 314402, 433070, 585470, 628804, 644017, 786005, 866140, 1170940, 1288034, 1572010, 1814957, 2576068, 3144020, 3220085, 3629914, 6440170, 7259828, 9074785, 12880340, 18149570, 19964527, 36299140, 39929054, 79858108, 99822635, 199645270, 399290540]

約数ペア:

[(1, 399290540), (2, 199645270), (4, 99822635), (5, 79858108), (10, 39929054), (11, 36299140), (20, 19964527), (22, 18149570), (31, 12880340), (44, 9074785), (55, 7259828), (62, 6440170), (110, 3629914), (124, 3220085), (127, 3144020), (155, 2576068), (220, 1814957), (254, 1572010), (310, 1288034), (341, 1170940), (461, 866140), (508, 786005), (620, 644017), (635, 628804), (682, 585470), (922, 433070), (1270, 314402), (1364, 292735), (1397, 285820), (1705, 234188), (1844, 216535), (2305, 173228), (2540, 157201), (2794, 142910), (3410, 117094), (3937, 101420), (4610, 86614), (5071, 78740), (5588, 71455), (6820, 58547), (6985, 57164), (7874, 50710), (9220, 43307), (10142, 39370), (13970, 28582), (14291, 27940), (15748, 25355), (19685, 20284)]