19761976

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1$

素因数の和:248

約数の個数: 64

約数和(自身を含む): 42890400

約数和(自身を除く): 23128424

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 73, 76, 104, 137, 146, 152, 247, 274, 292, 494, 548, 584, 949, 988, 1096, 1387, 1781, 1898, 1976, 2603, 2774, 3562, 3796, 5206, 5548, 7124, 7592, 10001, 10412, 11096, 14248, 18031, 20002, 20824, 33839, 36062, 40004, 67678, 72124, 80008, 130013, 135356, 144248, 190019, 260026, 270712, 380038, 520052, 760076, 1040104, 1520152, 2470247, 4940494, 9880988, 19761976]

約数ペア:

[(1, 19761976), (2, 9880988), (4, 4940494), (8, 2470247), (13, 1520152), (19, 1040104), (26, 760076), (38, 520052), (52, 380038), (73, 270712), (76, 260026), (104, 190019), (137, 144248), (146, 135356), (152, 130013), (247, 80008), (274, 72124), (292, 67678), (494, 40004), (548, 36062), (584, 33839), (949, 20824), (988, 20002), (1096, 18031), (1387, 14248), (1781, 11096), (1898, 10412), (1976, 10001), (2603, 7592), (2774, 7124), (3562, 5548), (3796, 5206)]