20123594552

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{421}}^1\times {\mathrm{557}}^1\times {\mathrm{631}}^1$

素因数の和:1632

約数の個数: 64

約数和(自身を含む): 40181624640

約数和(自身を除く): 20058030088

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 421, 557, 631, 842, 1114, 1262, 1684, 2228, 2524, 3368, 4456, 5048, 7157, 9469, 10727, 14314, 18938, 21454, 28628, 37876, 42908, 57256, 75752, 85816, 234497, 265651, 351467, 468994, 531302, 702934, 937988, 1062604, 1405868, 1875976, 2125208, 2811736, 3986449, 4516067, 5974939, 7972898, 9032134, 11949878, 15945796, 18064268, 23899756, 31891592, 36128536, 47799512, 147967607, 295935214, 591870428, 1183740856, 2515449319, 5030898638, 10061797276, 20123594552]

約数ペア:

[(1, 20123594552), (2, 10061797276), (4, 5030898638), (8, 2515449319), (17, 1183740856), (34, 591870428), (68, 295935214), (136, 147967607), (421, 47799512), (557, 36128536), (631, 31891592), (842, 23899756), (1114, 18064268), (1262, 15945796), (1684, 11949878), (2228, 9032134), (2524, 7972898), (3368, 5974939), (4456, 4516067), (5048, 3986449), (7157, 2811736), (9469, 2125208), (10727, 1875976), (14314, 1405868), (18938, 1062604), (21454, 937988), (28628, 702934), (37876, 531302), (42908, 468994), (57256, 351467), (75752, 265651), (85816, 234497)]