19786928

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1$

素因数の和:226

約数の個数: 80

約数和(自身を含む): 46663680

約数和(自身を除く): 26876752

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 41, 56, 62, 82, 112, 124, 139, 164, 217, 248, 278, 287, 328, 434, 496, 556, 574, 656, 868, 973, 1112, 1148, 1271, 1736, 1946, 2224, 2296, 2542, 3472, 3892, 4309, 4592, 5084, 5699, 7784, 8618, 8897, 10168, 11398, 15568, 17236, 17794, 20336, 22796, 30163, 34472, 35588, 39893, 45592, 60326, 68944, 71176, 79786, 91184, 120652, 142352, 159572, 176669, 241304, 319144, 353338, 482608, 638288, 706676, 1236683, 1413352, 2473366, 2826704, 4946732, 9893464, 19786928]

約数ペア:

[(1, 19786928), (2, 9893464), (4, 4946732), (7, 2826704), (8, 2473366), (14, 1413352), (16, 1236683), (28, 706676), (31, 638288), (41, 482608), (56, 353338), (62, 319144), (82, 241304), (112, 176669), (124, 159572), (139, 142352), (164, 120652), (217, 91184), (248, 79786), (278, 71176), (287, 68944), (328, 60326), (434, 45592), (496, 39893), (556, 35588), (574, 34472), (656, 30163), (868, 22796), (973, 20336), (1112, 17794), (1148, 17236), (1271, 15568), (1736, 11398), (1946, 10168), (2224, 8897), (2296, 8618), (2542, 7784), (3472, 5699), (3892, 5084), (4309, 4592)]