149987920

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1\times {\mathrm{307}}^1$

素因数の和:548

約数の個数: 80

約数和(自身を含む): 362976768

約数和(自身を除く): 212988848

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 197, 248, 307, 310, 394, 496, 614, 620, 788, 985, 1228, 1240, 1535, 1576, 1970, 2456, 2480, 3070, 3152, 3940, 4912, 6107, 6140, 7880, 9517, 12214, 12280, 15760, 19034, 24428, 24560, 30535, 38068, 47585, 48856, 60479, 61070, 76136, 95170, 97712, 120958, 122140, 152272, 190340, 241916, 244280, 302395, 380680, 483832, 488560, 604790, 761360, 967664, 1209580, 1874849, 2419160, 3749698, 4838320, 7499396, 9374245, 14998792, 18748490, 29997584, 37496980, 74993960, 149987920]

約数ペア:

[(1, 149987920), (2, 74993960), (4, 37496980), (5, 29997584), (8, 18748490), (10, 14998792), (16, 9374245), (20, 7499396), (31, 4838320), (40, 3749698), (62, 2419160), (80, 1874849), (124, 1209580), (155, 967664), (197, 761360), (248, 604790), (307, 488560), (310, 483832), (394, 380680), (496, 302395), (614, 244280), (620, 241916), (788, 190340), (985, 152272), (1228, 122140), (1240, 120958), (1535, 97712), (1576, 95170), (1970, 76136), (2456, 61070), (2480, 60479), (3070, 48856), (3152, 47585), (3940, 38068), (4912, 30535), (6107, 24560), (6140, 24428), (7880, 19034), (9517, 15760), (12214, 12280)]