16920470

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1$

素因数の和:237

約数の個数: 64

約数和(自身を含む): 36771840

約数和(自身を除く): 19851370

約数列:

[1, 2, 5, 7, 10, 14, 35, 37, 47, 70, 74, 94, 139, 185, 235, 259, 278, 329, 370, 470, 518, 658, 695, 973, 1295, 1390, 1645, 1739, 1946, 2590, 3290, 3478, 4865, 5143, 6533, 8695, 9730, 10286, 12173, 13066, 17390, 24346, 25715, 32665, 36001, 45731, 51430, 60865, 65330, 72002, 91462, 121730, 180005, 228655, 241721, 360010, 457310, 483442, 1208605, 1692047, 2417210, 3384094, 8460235, 16920470]

約数ペア:

[(1, 16920470), (2, 8460235), (5, 3384094), (7, 2417210), (10, 1692047), (14, 1208605), (35, 483442), (37, 457310), (47, 360010), (70, 241721), (74, 228655), (94, 180005), (139, 121730), (185, 91462), (235, 72002), (259, 65330), (278, 60865), (329, 51430), (370, 45731), (470, 36001), (518, 32665), (658, 25715), (695, 24346), (973, 17390), (1295, 13066), (1390, 12173), (1645, 10286), (1739, 9730), (1946, 8695), (2590, 6533), (3290, 5143), (3478, 4865)]