4006980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{197}}^1$

素因数の和:325

約数の個数: 72

約数和(自身を含む): 12324312

約数和(自身を除く): 8317332

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 113, 180, 197, 226, 339, 394, 452, 565, 591, 678, 788, 985, 1017, 1130, 1182, 1356, 1695, 1773, 1970, 2034, 2260, 2364, 2955, 3390, 3546, 3940, 4068, 5085, 5910, 6780, 7092, 8865, 10170, 11820, 17730, 20340, 22261, 35460, 44522, 66783, 89044, 111305, 133566, 200349, 222610, 267132, 333915, 400698, 445220, 667830, 801396, 1001745, 1335660, 2003490, 4006980]

約数ペア:

[(1, 4006980), (2, 2003490), (3, 1335660), (4, 1001745), (5, 801396), (6, 667830), (9, 445220), (10, 400698), (12, 333915), (15, 267132), (18, 222610), (20, 200349), (30, 133566), (36, 111305), (45, 89044), (60, 66783), (90, 44522), (113, 35460), (180, 22261), (197, 20340), (226, 17730), (339, 11820), (394, 10170), (452, 8865), (565, 7092), (591, 6780), (678, 5910), (788, 5085), (985, 4068), (1017, 3940), (1130, 3546), (1182, 3390), (1356, 2955), (1695, 2364), (1773, 2260), (1970, 2034)]