20803950

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{83}}^1\times {\mathrm{557}}^1$

素因数の和:658

約数の個数: 72

約数和(自身を含む): 56668248

約数和(自身を除く): 35864298

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 75, 83, 90, 150, 166, 225, 249, 415, 450, 498, 557, 747, 830, 1114, 1245, 1494, 1671, 2075, 2490, 2785, 3342, 3735, 4150, 5013, 5570, 6225, 7470, 8355, 10026, 12450, 13925, 16710, 18675, 25065, 27850, 37350, 41775, 46231, 50130, 83550, 92462, 125325, 138693, 231155, 250650, 277386, 416079, 462310, 693465, 832158, 1155775, 1386930, 2080395, 2311550, 3467325, 4160790, 6934650, 10401975, 20803950]

約数ペア:

[(1, 20803950), (2, 10401975), (3, 6934650), (5, 4160790), (6, 3467325), (9, 2311550), (10, 2080395), (15, 1386930), (18, 1155775), (25, 832158), (30, 693465), (45, 462310), (50, 416079), (75, 277386), (83, 250650), (90, 231155), (150, 138693), (166, 125325), (225, 92462), (249, 83550), (415, 50130), (450, 46231), (498, 41775), (557, 37350), (747, 27850), (830, 25065), (1114, 18675), (1245, 16710), (1494, 13925), (1671, 12450), (2075, 10026), (2490, 8355), (2785, 7470), (3342, 6225), (3735, 5570), (4150, 5013)]