87977860

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{1949}}^1$

素因数の和:2056

約数の個数: 48

約数和(自身を含む): 192956400

約数和(自身を除く): 104978540

約数列:

[1, 2, 4, 5, 10, 20, 37, 61, 74, 122, 148, 185, 244, 305, 370, 610, 740, 1220, 1949, 2257, 3898, 4514, 7796, 9028, 9745, 11285, 19490, 22570, 38980, 45140, 72113, 118889, 144226, 237778, 288452, 360565, 475556, 594445, 721130, 1188890, 1442260, 2377780, 4398893, 8797786, 17595572, 21994465, 43988930, 87977860]

約数ペア:

[(1, 87977860), (2, 43988930), (4, 21994465), (5, 17595572), (10, 8797786), (20, 4398893), (37, 2377780), (61, 1442260), (74, 1188890), (122, 721130), (148, 594445), (185, 475556), (244, 360565), (305, 288452), (370, 237778), (610, 144226), (740, 118889), (1220, 72113), (1949, 45140), (2257, 38980), (3898, 22570), (4514, 19490), (7796, 11285), (9028, 9745)]