11991980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{599}}^1$

素因数の和:639

約数の個数: 96

約数和(自身を含む): 33868800

約数和(自身を除く): 21876820

約数列:

[1, 2, 4, 5, 7, 10, 11, 13, 14, 20, 22, 26, 28, 35, 44, 52, 55, 65, 70, 77, 91, 110, 130, 140, 143, 154, 182, 220, 260, 286, 308, 364, 385, 455, 572, 599, 715, 770, 910, 1001, 1198, 1430, 1540, 1820, 2002, 2396, 2860, 2995, 4004, 4193, 5005, 5990, 6589, 7787, 8386, 10010, 11980, 13178, 15574, 16772, 20020, 20965, 26356, 31148, 32945, 38935, 41930, 46123, 54509, 65890, 77870, 83860, 85657, 92246, 109018, 131780, 155740, 171314, 184492, 218036, 230615, 272545, 342628, 428285, 461230, 545090, 599599, 856570, 922460, 1090180, 1199198, 1713140, 2398396, 2997995, 5995990, 11991980]

約数ペア:

[(1, 11991980), (2, 5995990), (4, 2997995), (5, 2398396), (7, 1713140), (10, 1199198), (11, 1090180), (13, 922460), (14, 856570), (20, 599599), (22, 545090), (26, 461230), (28, 428285), (35, 342628), (44, 272545), (52, 230615), (55, 218036), (65, 184492), (70, 171314), (77, 155740), (91, 131780), (110, 109018), (130, 92246), (140, 85657), (143, 83860), (154, 77870), (182, 65890), (220, 54509), (260, 46123), (286, 41930), (308, 38935), (364, 32945), (385, 31148), (455, 26356), (572, 20965), (599, 20020), (715, 16772), (770, 15574), (910, 13178), (1001, 11980), (1198, 10010), (1430, 8386), (1540, 7787), (1820, 6589), (2002, 5990), (2396, 5005), (2860, 4193), (2995, 4004)]