20195576180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{283}}^1\times {\mathrm{274471}}^1$

素因数の和:274776

約数の個数: 48

約数和(自身を含む): 45834628224

約数和(自身を除く): 25639052044

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 283, 566, 1132, 1415, 2830, 3679, 5660, 7358, 14716, 18395, 36790, 73580, 274471, 548942, 1097884, 1372355, 2744710, 3568123, 5489420, 7136246, 14272492, 17840615, 35681230, 71362460, 77675293, 155350586, 310701172, 388376465, 776752930, 1009778809, 1553505860, 2019557618, 4039115236, 5048894045, 10097788090, 20195576180]

約数ペア:

[(1, 20195576180), (2, 10097788090), (4, 5048894045), (5, 4039115236), (10, 2019557618), (13, 1553505860), (20, 1009778809), (26, 776752930), (52, 388376465), (65, 310701172), (130, 155350586), (260, 77675293), (283, 71362460), (566, 35681230), (1132, 17840615), (1415, 14272492), (2830, 7136246), (3679, 5489420), (5660, 3568123), (7358, 2744710), (14716, 1372355), (18395, 1097884), (36790, 548942), (73580, 274471)]