320171720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{23473}}^1$

素因数の和:23526

約数の個数: 64

約数和(自身を含む): 811261440

約数和(自身を除く): 491089720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 124, 155, 220, 248, 310, 341, 440, 620, 682, 1240, 1364, 1705, 2728, 3410, 6820, 13640, 23473, 46946, 93892, 117365, 187784, 234730, 258203, 469460, 516406, 727663, 938920, 1032812, 1291015, 1455326, 2065624, 2582030, 2910652, 3638315, 5164060, 5821304, 7276630, 8004293, 10328120, 14553260, 16008586, 29106520, 32017172, 40021465, 64034344, 80042930, 160085860, 320171720]

約数ペア:

[(1, 320171720), (2, 160085860), (4, 80042930), (5, 64034344), (8, 40021465), (10, 32017172), (11, 29106520), (20, 16008586), (22, 14553260), (31, 10328120), (40, 8004293), (44, 7276630), (55, 5821304), (62, 5164060), (88, 3638315), (110, 2910652), (124, 2582030), (155, 2065624), (220, 1455326), (248, 1291015), (310, 1032812), (341, 938920), (440, 727663), (620, 516406), (682, 469460), (1240, 258203), (1364, 234730), (1705, 187784), (2728, 117365), (3410, 93892), (6820, 46946), (13640, 23473)]