78415120

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{4517}}^1$

素因数の和:4568

約数の個数: 80

約数和(自身を含む): 215129088

約数和(自身を除く): 136713968

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 112, 124, 140, 155, 217, 248, 280, 310, 434, 496, 560, 620, 868, 1085, 1240, 1736, 2170, 2480, 3472, 4340, 4517, 8680, 9034, 17360, 18068, 22585, 31619, 36136, 45170, 63238, 72272, 90340, 126476, 140027, 158095, 180680, 252952, 280054, 316190, 361360, 505904, 560108, 632380, 700135, 980189, 1120216, 1264760, 1400270, 1960378, 2240432, 2529520, 2800540, 3920756, 4900945, 5601080, 7841512, 9801890, 11202160, 15683024, 19603780, 39207560, 78415120]

約数ペア:

[(1, 78415120), (2, 39207560), (4, 19603780), (5, 15683024), (7, 11202160), (8, 9801890), (10, 7841512), (14, 5601080), (16, 4900945), (20, 3920756), (28, 2800540), (31, 2529520), (35, 2240432), (40, 1960378), (56, 1400270), (62, 1264760), (70, 1120216), (80, 980189), (112, 700135), (124, 632380), (140, 560108), (155, 505904), (217, 361360), (248, 316190), (280, 280054), (310, 252952), (434, 180680), (496, 158095), (560, 140027), (620, 126476), (868, 90340), (1085, 72272), (1240, 63238), (1736, 45170), (2170, 36136), (2480, 31619), (3472, 22585), (4340, 18068), (4517, 17360), (8680, 9034)]