28999180

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{127}}^1\times {\mathrm{233}}^1$

素因数の和:383

約数の個数: 72

約数和(自身を含む): 71705088

約数和(自身を除く): 42705908

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 127, 140, 196, 233, 245, 254, 466, 490, 508, 635, 889, 932, 980, 1165, 1270, 1631, 1778, 2330, 2540, 3262, 3556, 4445, 4660, 6223, 6524, 8155, 8890, 11417, 12446, 16310, 17780, 22834, 24892, 29591, 31115, 32620, 45668, 57085, 59182, 62230, 114170, 118364, 124460, 147955, 207137, 228340, 295910, 414274, 591820, 828548, 1035685, 1449959, 2071370, 2899918, 4142740, 5799836, 7249795, 14499590, 28999180]

約数ペア:

[(1, 28999180), (2, 14499590), (4, 7249795), (5, 5799836), (7, 4142740), (10, 2899918), (14, 2071370), (20, 1449959), (28, 1035685), (35, 828548), (49, 591820), (70, 414274), (98, 295910), (127, 228340), (140, 207137), (196, 147955), (233, 124460), (245, 118364), (254, 114170), (466, 62230), (490, 59182), (508, 57085), (635, 45668), (889, 32620), (932, 31115), (980, 29591), (1165, 24892), (1270, 22834), (1631, 17780), (1778, 16310), (2330, 12446), (2540, 11417), (3262, 8890), (3556, 8155), (4445, 6524), (4660, 6223)]