27793780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{359}}^1$

素因数の和:461

約数の個数: 72

約数和(自身を含む): 68947200

約数和(自身を除く): 41153420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 79, 98, 140, 158, 196, 245, 316, 359, 395, 490, 553, 718, 790, 980, 1106, 1436, 1580, 1795, 2212, 2513, 2765, 3590, 3871, 5026, 5530, 7180, 7742, 10052, 11060, 12565, 15484, 17591, 19355, 25130, 28361, 35182, 38710, 50260, 56722, 70364, 77420, 87955, 113444, 141805, 175910, 198527, 283610, 351820, 397054, 567220, 794108, 992635, 1389689, 1985270, 2779378, 3970540, 5558756, 6948445, 13896890, 27793780]

約数ペア:

[(1, 27793780), (2, 13896890), (4, 6948445), (5, 5558756), (7, 3970540), (10, 2779378), (14, 1985270), (20, 1389689), (28, 992635), (35, 794108), (49, 567220), (70, 397054), (79, 351820), (98, 283610), (140, 198527), (158, 175910), (196, 141805), (245, 113444), (316, 87955), (359, 77420), (395, 70364), (490, 56722), (553, 50260), (718, 38710), (790, 35182), (980, 28361), (1106, 25130), (1436, 19355), (1580, 17591), (1795, 15484), (2212, 12565), (2513, 11060), (2765, 10052), (3590, 7742), (3871, 7180), (5026, 5530)]