81730100

素因数分解:

$2^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{229}}^1$

素因数の和:369

約数の個数: 72

約数和(自身を含む): 184467360

約数和(自身を除く): 102737260

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 83, 86, 100, 166, 172, 215, 229, 332, 415, 430, 458, 830, 860, 916, 1075, 1145, 1660, 2075, 2150, 2290, 3569, 4150, 4300, 4580, 5725, 7138, 8300, 9847, 11450, 14276, 17845, 19007, 19694, 22900, 35690, 38014, 39388, 49235, 71380, 76028, 89225, 95035, 98470, 178450, 190070, 196940, 246175, 356900, 380140, 475175, 492350, 817301, 950350, 984700, 1634602, 1900700, 3269204, 4086505, 8173010, 16346020, 20432525, 40865050, 81730100]

約数ペア:

[(1, 81730100), (2, 40865050), (4, 20432525), (5, 16346020), (10, 8173010), (20, 4086505), (25, 3269204), (43, 1900700), (50, 1634602), (83, 984700), (86, 950350), (100, 817301), (166, 492350), (172, 475175), (215, 380140), (229, 356900), (332, 246175), (415, 196940), (430, 190070), (458, 178450), (830, 98470), (860, 95035), (916, 89225), (1075, 76028), (1145, 71380), (1660, 49235), (2075, 39388), (2150, 38014), (2290, 35690), (3569, 22900), (4150, 19694), (4300, 19007), (4580, 17845), (5725, 14276), (7138, 11450), (8300, 9847)]