209120828

素因数分解:

$2^2\times 7^2\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{491}}^1$

素因数の和:603

約数の個数: 72

約数和(自身を含む): 445226544

約数和(自身を除く): 236105716

約数列:

[1, 2, 4, 7, 14, 28, 41, 49, 53, 82, 98, 106, 164, 196, 212, 287, 371, 491, 574, 742, 982, 1148, 1484, 1964, 2009, 2173, 2597, 3437, 4018, 4346, 5194, 6874, 8036, 8692, 10388, 13748, 15211, 20131, 24059, 26023, 30422, 40262, 48118, 52046, 60844, 80524, 96236, 104092, 106477, 140917, 182161, 212954, 281834, 364322, 425908, 563668, 728644, 986419, 1066943, 1275127, 1972838, 2133886, 2550254, 3945676, 4267772, 5100508, 7468601, 14937202, 29874404, 52280207, 104560414, 209120828]

約数ペア:

[(1, 209120828), (2, 104560414), (4, 52280207), (7, 29874404), (14, 14937202), (28, 7468601), (41, 5100508), (49, 4267772), (53, 3945676), (82, 2550254), (98, 2133886), (106, 1972838), (164, 1275127), (196, 1066943), (212, 986419), (287, 728644), (371, 563668), (491, 425908), (574, 364322), (742, 281834), (982, 212954), (1148, 182161), (1484, 140917), (1964, 106477), (2009, 104092), (2173, 96236), (2597, 80524), (3437, 60844), (4018, 52046), (4346, 48118), (5194, 40262), (6874, 30422), (8036, 26023), (8692, 24059), (10388, 20131), (13748, 15211)]