9880988

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1$

素因数の和:246

約数の個数: 48

約数和(自身を含む): 20015520

約数和(自身を除く): 10134532

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 73, 76, 137, 146, 247, 274, 292, 494, 548, 949, 988, 1387, 1781, 1898, 2603, 2774, 3562, 3796, 5206, 5548, 7124, 10001, 10412, 18031, 20002, 33839, 36062, 40004, 67678, 72124, 130013, 135356, 190019, 260026, 380038, 520052, 760076, 2470247, 4940494, 9880988]

約数ペア:

[(1, 9880988), (2, 4940494), (4, 2470247), (13, 760076), (19, 520052), (26, 380038), (38, 260026), (52, 190019), (73, 135356), (76, 130013), (137, 72124), (146, 67678), (247, 40004), (274, 36062), (292, 33839), (494, 20002), (548, 18031), (949, 10412), (988, 10001), (1387, 7124), (1781, 5548), (1898, 5206), (2603, 3796), (2774, 3562)]