81020550

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{41549}}^1$

素因数の和:41577

約数の個数: 48

約数和(自身を含む): 216392400

約数和(自身を除く): 135371850

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 65, 75, 78, 130, 150, 195, 325, 390, 650, 975, 1950, 41549, 83098, 124647, 207745, 249294, 415490, 540137, 623235, 1038725, 1080274, 1246470, 1620411, 2077450, 2700685, 3116175, 3240822, 5401370, 6232350, 8102055, 13503425, 16204110, 27006850, 40510275, 81020550]

約数ペア:

[(1, 81020550), (2, 40510275), (3, 27006850), (5, 16204110), (6, 13503425), (10, 8102055), (13, 6232350), (15, 5401370), (25, 3240822), (26, 3116175), (30, 2700685), (39, 2077450), (50, 1620411), (65, 1246470), (75, 1080274), (78, 1038725), (130, 623235), (150, 540137), (195, 415490), (325, 249294), (390, 207745), (650, 124647), (975, 83098), (1950, 41549)]