81348428

素因数分解:

$2^2\times 7^2\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{191}}^1$

素因数の和:303

約数の個数: 72

約数和(自身を含む): 173746944

約数和(自身を除く): 92398516

約数列:

[1, 2, 4, 7, 14, 28, 41, 49, 53, 82, 98, 106, 164, 191, 196, 212, 287, 371, 382, 574, 742, 764, 1148, 1337, 1484, 2009, 2173, 2597, 2674, 4018, 4346, 5194, 5348, 7831, 8036, 8692, 9359, 10123, 10388, 15211, 15662, 18718, 20246, 30422, 31324, 37436, 40492, 54817, 60844, 70861, 106477, 109634, 141722, 212954, 219268, 283444, 383719, 415043, 425908, 496027, 767438, 830086, 992054, 1534876, 1660172, 1984108, 2905301, 5810602, 11621204, 20337107, 40674214, 81348428]

約数ペア:

[(1, 81348428), (2, 40674214), (4, 20337107), (7, 11621204), (14, 5810602), (28, 2905301), (41, 1984108), (49, 1660172), (53, 1534876), (82, 992054), (98, 830086), (106, 767438), (164, 496027), (191, 425908), (196, 415043), (212, 383719), (287, 283444), (371, 219268), (382, 212954), (574, 141722), (742, 109634), (764, 106477), (1148, 70861), (1337, 60844), (1484, 54817), (2009, 40492), (2173, 37436), (2597, 31324), (2674, 30422), (4018, 20246), (4346, 18718), (5194, 15662), (5348, 15211), (7831, 10388), (8036, 10123), (8692, 9359)]