20401700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1091}}^1$

素因数の和:1133

約数の個数: 72

約数和(自身を含む): 51184224

約数和(自身を除く): 30782524

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 25, 34, 44, 50, 55, 68, 85, 100, 110, 170, 187, 220, 275, 340, 374, 425, 550, 748, 850, 935, 1091, 1100, 1700, 1870, 2182, 3740, 4364, 4675, 5455, 9350, 10910, 12001, 18547, 18700, 21820, 24002, 27275, 37094, 48004, 54550, 60005, 74188, 92735, 109100, 120010, 185470, 204017, 240020, 300025, 370940, 408034, 463675, 600050, 816068, 927350, 1020085, 1200100, 1854700, 2040170, 4080340, 5100425, 10200850, 20401700]

約数ペア:

[(1, 20401700), (2, 10200850), (4, 5100425), (5, 4080340), (10, 2040170), (11, 1854700), (17, 1200100), (20, 1020085), (22, 927350), (25, 816068), (34, 600050), (44, 463675), (50, 408034), (55, 370940), (68, 300025), (85, 240020), (100, 204017), (110, 185470), (170, 120010), (187, 109100), (220, 92735), (275, 74188), (340, 60005), (374, 54550), (425, 48004), (550, 37094), (748, 27275), (850, 24002), (935, 21820), (1091, 18700), (1100, 18547), (1700, 12001), (1870, 10910), (2182, 9350), (3740, 5455), (4364, 4675)]