78580821

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{179}}^1\times {\mathrm{251}}^1$

素因数の和:497

約数の個数: 32

約数和(自身を含む): 117573120

約数和(自身を除く): 38992299

約数列:

[1, 3, 11, 33, 53, 159, 179, 251, 537, 583, 753, 1749, 1969, 2761, 5907, 8283, 9487, 13303, 28461, 39909, 44929, 104357, 134787, 146333, 313071, 438999, 494219, 1482657, 2381237, 7143711, 26193607, 78580821]

約数ペア:

[(1, 78580821), (3, 26193607), (11, 7143711), (33, 2381237), (53, 1482657), (159, 494219), (179, 438999), (251, 313071), (537, 146333), (583, 134787), (753, 104357), (1749, 44929), (1969, 39909), (2761, 28461), (5907, 13303), (8283, 9487)]