91521220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{1987}}^1$

素因数の和:2057

約数の個数: 72

約数和(自身を含む): 228445056

約数和(自身を除く): 136923836

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 49, 70, 94, 98, 140, 188, 196, 235, 245, 329, 470, 490, 658, 940, 980, 1316, 1645, 1987, 2303, 3290, 3974, 4606, 6580, 7948, 9212, 9935, 11515, 13909, 19870, 23030, 27818, 39740, 46060, 55636, 69545, 93389, 97363, 139090, 186778, 194726, 278180, 373556, 389452, 466945, 486815, 653723, 933890, 973630, 1307446, 1867780, 1947260, 2614892, 3268615, 4576061, 6537230, 9152122, 13074460, 18304244, 22880305, 45760610, 91521220]

約数ペア:

[(1, 91521220), (2, 45760610), (4, 22880305), (5, 18304244), (7, 13074460), (10, 9152122), (14, 6537230), (20, 4576061), (28, 3268615), (35, 2614892), (47, 1947260), (49, 1867780), (70, 1307446), (94, 973630), (98, 933890), (140, 653723), (188, 486815), (196, 466945), (235, 389452), (245, 373556), (329, 278180), (470, 194726), (490, 186778), (658, 139090), (940, 97363), (980, 93389), (1316, 69545), (1645, 55636), (1987, 46060), (2303, 39740), (3290, 27818), (3974, 23030), (4606, 19870), (6580, 13909), (7948, 11515), (9212, 9935)]