20301736

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{353}}^1$

素因数の和:458

約数の個数: 64

約数和(自身を含む): 47577600

約数和(自身を除く): 27275864

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 79, 91, 104, 158, 182, 316, 353, 364, 553, 632, 706, 728, 1027, 1106, 1412, 2054, 2212, 2471, 2824, 4108, 4424, 4589, 4942, 7189, 8216, 9178, 9884, 14378, 18356, 19768, 27887, 28756, 32123, 36712, 55774, 57512, 64246, 111548, 128492, 195209, 223096, 256984, 362531, 390418, 725062, 780836, 1450124, 1561672, 2537717, 2900248, 5075434, 10150868, 20301736]

約数ペア:

[(1, 20301736), (2, 10150868), (4, 5075434), (7, 2900248), (8, 2537717), (13, 1561672), (14, 1450124), (26, 780836), (28, 725062), (52, 390418), (56, 362531), (79, 256984), (91, 223096), (104, 195209), (158, 128492), (182, 111548), (316, 64246), (353, 57512), (364, 55774), (553, 36712), (632, 32123), (706, 28756), (728, 27887), (1027, 19768), (1106, 18356), (1412, 14378), (2054, 9884), (2212, 9178), (2471, 8216), (2824, 7189), (4108, 4942), (4424, 4589)]