18900420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{4091}}^1$

素因数の和:4121

約数の個数: 96

約数和(自身を含む): 65995776

約数和(自身を除く): 47095356

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 30, 33, 35, 42, 44, 55, 60, 66, 70, 77, 84, 105, 110, 132, 140, 154, 165, 210, 220, 231, 308, 330, 385, 420, 462, 660, 770, 924, 1155, 1540, 2310, 4091, 4620, 8182, 12273, 16364, 20455, 24546, 28637, 40910, 45001, 49092, 57274, 61365, 81820, 85911, 90002, 114548, 122730, 135003, 143185, 171822, 180004, 225005, 245460, 270006, 286370, 315007, 343644, 429555, 450010, 540012, 572740, 630014, 675015, 859110, 900020, 945021, 1260028, 1350030, 1575035, 1718220, 1890042, 2700060, 3150070, 3780084, 4725105, 6300140, 9450210, 18900420]

約数ペア:

[(1, 18900420), (2, 9450210), (3, 6300140), (4, 4725105), (5, 3780084), (6, 3150070), (7, 2700060), (10, 1890042), (11, 1718220), (12, 1575035), (14, 1350030), (15, 1260028), (20, 945021), (21, 900020), (22, 859110), (28, 675015), (30, 630014), (33, 572740), (35, 540012), (42, 450010), (44, 429555), (55, 343644), (60, 315007), (66, 286370), (70, 270006), (77, 245460), (84, 225005), (105, 180004), (110, 171822), (132, 143185), (140, 135003), (154, 122730), (165, 114548), (210, 90002), (220, 85911), (231, 81820), (308, 61365), (330, 57274), (385, 49092), (420, 45001), (462, 40910), (660, 28637), (770, 24546), (924, 20455), (1155, 16364), (1540, 12273), (2310, 8182), (4091, 4620)]