28889770

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{599}}^1$

素因数の和:679

約数の個数: 64

約数和(自身を含む): 65318400

約数和(自身を除く): 36428630

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 53, 65, 70, 91, 106, 130, 182, 265, 371, 455, 530, 599, 689, 742, 910, 1198, 1378, 1855, 2995, 3445, 3710, 4193, 4823, 5990, 6890, 7787, 8386, 9646, 15574, 20965, 24115, 31747, 38935, 41930, 48230, 54509, 63494, 77870, 109018, 158735, 222229, 272545, 317470, 412711, 444458, 545090, 825422, 1111145, 2063555, 2222290, 2888977, 4127110, 5777954, 14444885, 28889770]

約数ペア:

[(1, 28889770), (2, 14444885), (5, 5777954), (7, 4127110), (10, 2888977), (13, 2222290), (14, 2063555), (26, 1111145), (35, 825422), (53, 545090), (65, 444458), (70, 412711), (91, 317470), (106, 272545), (130, 222229), (182, 158735), (265, 109018), (371, 77870), (455, 63494), (530, 54509), (599, 48230), (689, 41930), (742, 38935), (910, 31747), (1198, 24115), (1378, 20965), (1855, 15574), (2995, 9646), (3445, 8386), (3710, 7787), (4193, 6890), (4823, 5990)]