20191444

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{251}}^1$

素因数の和:305

約数の個数: 72

約数和(自身を含む): 46484928

約数和(自身を除く): 26293484

約数列:

[1, 2, 4, 7, 13, 14, 17, 26, 28, 34, 52, 68, 91, 119, 169, 182, 221, 238, 251, 338, 364, 442, 476, 502, 676, 884, 1004, 1183, 1547, 1757, 2366, 2873, 3094, 3263, 3514, 4267, 4732, 5746, 6188, 6526, 7028, 8534, 11492, 13052, 17068, 20111, 22841, 29869, 40222, 42419, 45682, 55471, 59738, 80444, 84838, 91364, 110942, 119476, 169676, 221884, 296933, 388297, 593866, 721123, 776594, 1187732, 1442246, 1553188, 2884492, 5047861, 10095722, 20191444]

約数ペア:

[(1, 20191444), (2, 10095722), (4, 5047861), (7, 2884492), (13, 1553188), (14, 1442246), (17, 1187732), (26, 776594), (28, 721123), (34, 593866), (52, 388297), (68, 296933), (91, 221884), (119, 169676), (169, 119476), (182, 110942), (221, 91364), (238, 84838), (251, 80444), (338, 59738), (364, 55471), (442, 45682), (476, 42419), (502, 40222), (676, 29869), (884, 22841), (1004, 20111), (1183, 17068), (1547, 13052), (1757, 11492), (2366, 8534), (2873, 7028), (3094, 6526), (3263, 6188), (3514, 5746), (4267, 4732)]