219790640

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1\times {\mathrm{419}}^1$

素因数の和:594

約数の個数: 80

約数和(自身を含む): 524966400

約数和(自身を除く): 305175760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 83, 158, 166, 316, 332, 395, 415, 419, 632, 664, 790, 830, 838, 1264, 1328, 1580, 1660, 1676, 2095, 3160, 3320, 3352, 4190, 6320, 6557, 6640, 6704, 8380, 13114, 16760, 26228, 32785, 33101, 33520, 34777, 52456, 65570, 66202, 69554, 104912, 131140, 132404, 139108, 165505, 173885, 262280, 264808, 278216, 331010, 347770, 524560, 529616, 556432, 662020, 695540, 1324040, 1391080, 2648080, 2747383, 2782160, 5494766, 10989532, 13736915, 21979064, 27473830, 43958128, 54947660, 109895320, 219790640]

約数ペア:

[(1, 219790640), (2, 109895320), (4, 54947660), (5, 43958128), (8, 27473830), (10, 21979064), (16, 13736915), (20, 10989532), (40, 5494766), (79, 2782160), (80, 2747383), (83, 2648080), (158, 1391080), (166, 1324040), (316, 695540), (332, 662020), (395, 556432), (415, 529616), (419, 524560), (632, 347770), (664, 331010), (790, 278216), (830, 264808), (838, 262280), (1264, 173885), (1328, 165505), (1580, 139108), (1660, 132404), (1676, 131140), (2095, 104912), (3160, 69554), (3320, 66202), (3352, 65570), (4190, 52456), (6320, 34777), (6557, 33520), (6640, 33101), (6704, 32785), (8380, 26228), (13114, 16760)]