28066990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{449}}^1$

素因数の和:529

約数の個数: 64

約数和(自身を含む): 62208000

約数和(自身を除く): 34141010

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 47, 70, 94, 95, 133, 190, 235, 266, 329, 449, 470, 658, 665, 893, 898, 1330, 1645, 1786, 2245, 3143, 3290, 4465, 4490, 6251, 6286, 8531, 8930, 12502, 15715, 17062, 21103, 31255, 31430, 42206, 42655, 59717, 62510, 85310, 105515, 119434, 147721, 211030, 295442, 298585, 400957, 597170, 738605, 801914, 1477210, 2004785, 2806699, 4009570, 5613398, 14033495, 28066990]

約数ペア:

[(1, 28066990), (2, 14033495), (5, 5613398), (7, 4009570), (10, 2806699), (14, 2004785), (19, 1477210), (35, 801914), (38, 738605), (47, 597170), (70, 400957), (94, 298585), (95, 295442), (133, 211030), (190, 147721), (235, 119434), (266, 105515), (329, 85310), (449, 62510), (470, 59717), (658, 42655), (665, 42206), (893, 31430), (898, 31255), (1330, 21103), (1645, 17062), (1786, 15715), (2245, 12502), (3143, 8930), (3290, 8531), (4465, 6286), (4490, 6251)]